| CPL | caprine placental lactogen; conditioned pitch level; congenital pulmonary lymphangiectasia |
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| DPT | Demerol, Phenergan, and Thorazine; dermatopontin; dichotic pitch discrimination test; diphtheria-per... |
| HARD | hydrocephalus-agyria-retinal dysplasia [syndrome] |
| HARD | +/- E hydrocephalus-agyria-retinal dysplasia plus or minus encephalocele [syndrome] |
| HE | half-scan with extrapolation; hard exudate; hektoen enteric [agar]; hemagglutinating encephalomyelit... |
| AP | Absolute Pitch |
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| Burgundy pitch | A resinous exudation from the spruce fir or Norway spruce, Picea excelsa; has been used as a counterirritant in the form of a plaster. Synonym: white pitch. (05 Mar 2000) |
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| pitch | 1. To throw, generally with a definite aim or purpose; to cast; to hurl; to toss; as, to pitch quoits; to pitch hay; to pitch a ball. 2. To thrust or plant in the ground, as stakes or poles; hence, to fix firmly, as by means of poles; to establish; to arrange; as, to pitch a tent; to pitch a camp. 3. To set, face, or pave with rubble or undressed stones, as an embankment or a roadway. 4. To fix or set the tone of; as, to pitch a tune. 5. To set or fix, as a price or value. Pitched battle, a general battle; a battle in which the hostile forces have fixed positions; in distinction from a skirmish. To pitch into, to attack; to assault; to abuse. Origin: OE. Picchen; akin to E. Pick, pike. 1. To fix or place a tent or temporary habitation; to encamp. "Laban with his brethren pitched in the Mount of Gilead." 2. To light; to settle; to come to rest from flight. "The tree whereon they [the bees] pitch." (Mortimer) 3. To fix one's choise; with on or upon. "Pitch upon the best course of life, and custom will render it the more easy." (Tillotson) 4. To plunge or fall; especially, to fall forward; to decline or slope; as, to pitch from a precipice; the vessel pitches in a heavy sea; the field pitches toward the east. Pitch and pay, an old aphorism which inculcates ready-money payment, or payment on delivery of goods. 1. A thick, black, lustrous, and sticky substance obtained by boiling down tar. It is used in calking the seams of ships; also in coating rope, canvas, wood, ironwork, etc, to preserve them. "He that toucheth pitch shall be defiled therewith." (Ecclus. Xiii. 1) 2. <geology> See Pitchstone. Amboyna pitch, the resin of Dammara australis. See Kauri. Burgundy pitch. See Burgundy. Canada pitch, the resinous exudation of the hemlock tree (Abies Canadensis); hemlock gum. Jew's pitch, bitumen. Mineral pitch. See Bitumen and Asphalt. <chemical> Pitch coal, a black homogeneous peat, with a waxy luster. <botany> Pitch pine, any one of several species of pine, yielding pitch, especially. The Pinus rigida of North America. Origin: OE. Pich, AS. Pic, L. Pix; akin to Gr. 1. A throw; a toss; a cast, as of something from the hand; as, a good pitch in quoits. Pitch and toss, a game played by tossing up a coin, and calling "Heads or tails;" hence: To play pitch and toss with (anything), to be careless or trust to luck about it. "To play pitch and toss with the property of the country." . Pitch farthing. See Chuck farthing, under 5th Chuck. 2. That point of the ground on which the ball pitches or lights when bowled. 3. A point or peak; the extreme point or degree of elevation or depression; hence, a limit or bound. "Driven headlong from the pitch of heaven, down Into this deep." (Milton) "Enterprises of great pitch and moment." (Shak) "To lowest pitch of abject fortune." (Milton) "He lived when learning was at its highest pitch." (Addison) "The exact pitch, or limits, where temperance ends." (Sharp) 4. Height; stature. 5. A descent; a fall; a thrusting down. 6. The point where a declivity begins; hence, the declivity itself; a descending slope; the degree or rate of descent or slope; slant; as, a steep pitch in the road; the pitch of a roof. 7. The relative acuteness or gravity of a tone, determined by the number of vibrations which produce it; the place of any tone upon a scale of high and low. Musical tones with reference to absolute pitch, are named after the first seven letters of the alphabet; with reference to relative pitch, in a series of tones called the scale, they are called one, two, three, four, five, six, seven, eight. Eight is also one of a new scale an octave higher, as one is eight of a scale an octave lower. 8. <chemical> The limit of ground set to a miner who receives a share of the ore taken out. 9. <mechanics> The distance from center to center of any two adjacent teeth of gearing, measured on the pitch line; called also circular pitch. The length, measured along the axis, of a complete turn of the thread of a screw, or of the helical lines of the blades of a screw propeller. The distance between the centers of holes, as of rivet holes in boiler plates. Concert pitch, the point of contact of the pitch lines of two gears, or of a rack and pinion, which work together. Source: Websters Dictionary (01 Mar 1998) |
| pitch angle | <physics> For a charged particle moving in a magnetic field, this is the angle arctan (v-perp/v-parallel), where v-parallel is the component of the particle's velocity parallel to the magnetic field, and v-perp is the perpendicular component. The pitch angle is zero when the particle moves purely parallel to the field, and 90-degrees when the particle has no parallel velocity at all. (09 Oct 1997) |
| pitch angle scattering | <physics> Scattering (collisional, or due to wave-particle effects) of particles in velocity space, in which the pitch angle (see entry above) is changed. (09 Oct 1997) |
| pitch discrimination | The ability to differentiate tones. (12 Dec 1998) |
| pitch-ore | <chemical> Pitchblende. Source: Websters Dictionary (01 Mar 1998) |
| pitch perception | A dimension of auditory sensation varying with cycles per second of the sound stimulus. (12 Dec 1998) |
| pitch poisoning | A highly fatal disease of swine, usually caused by the ingestion of fragments of the clay pigeons used as targets by shooting clubs; some cases have been caused by consumption of other bituminous substances, such as road tar and tar paper. Synonym: clay pigeon poisoning. (05 Mar 2000) |
| pitch wart | A precancerous keratotic epidermal tumour, common among workers in pitch and coal tar derivatives. See: pitch-worker's cancer. (05 Mar 2000) |
| pitch-worker's cancer | Carcinoma of the skin of the face or neck, arms and hands, or the scrotum, resulting from exposure to carcinogens in pitch, which occurs naturally as asphalt, or as a residue in the distillation of tar. (05 Mar 2000) |
| white pitch | A resinous exudation from the spruce fir or Norway spruce, Picea excelsa; has been used as a counterirritant in the form of a plaster. Synonym: white pitch. (05 Mar 2000) |
| tough-pitch | <chemistry> The exact state or quality of texture and consistency of well reduced and refined copper. Copper so reduced; called also tough-cake. Source: Websters Dictionary (01 Mar 1998) |
| liquid pitch | Obtained by the destructive distillation of the wood of Pinus palustris and other species of Pinus; used internally as an expectorant, and externally in the treatment of skin diseases. Synonym: liquid pitch. (05 Mar 2000) |
| palate, hard | The bony part of the roof of the mouth. The hard palate is just in front of the soft palate. (12 Dec 1998) |
| hard | 1. With pressure; with urgency; hence, diligently; earnestly. "And prayed so hard for mercy from the prince." (Dryden) "My father Is hard at study; pray now, rest yourself." (Shak) 2. With difficulty; as, the vehicle moves hard. 3. Uneasily; vexatiously; slowly. (Shak) 4. So as to raise difficulties. " The guestion is hard set". (Sir T. Browne) 5. With tension or strain of the powers; violently; with force; tempestuously; vehemently; vigorously; energetically; as, to press, to blow, to rain hard; hence, rapidly; as, to run hard. 6. Close or near. "Whose house joined hard to the synagogue." (Acts xviii.7) Hard by, near by; close at hand; not far off. "Hard by a cottage chimney smokes." . Hard pushed, Hard run, greatly pressed; as, he was hard pushed or hard run for time, money, etc. Hard up, closely pressed by want or necessity; without money or resources; as, hard up for amusements. Hard in nautical language is often joined to words of command to the helmsman, denoting that the order should be carried out with the utmost energy, or that the helm should be put, in the direction indicated, to the extreme limit, as, Hard aport! Hard astarboard! Hard alee! Hard aweather up! Hard is also often used in composition with a participle; as, hard-baked; hard-earned; hard-working; hard-won. Origin: OE. Harde, AS. Hearde. 1. Not easily penetrated, cut, or separated into parts; not yielding to pressure; firm; solid; compact; applied to material bodies, and opposed to soft; as, hard wood; hard flesh; a hard apple. 2. Difficult, mentally or judicially; not easily apprehended, decided, or resolved; as a hard problem." "The hard causes they brought unto Moses." (Ex. Xviii. 26) "In which are some things hard to be understood." (2 Peter III. 16) 3. Difficult to accomplish; full of obstacles; laborious; fatiguing; arduous; as, a hard task; a disease hard to cure. 4. Difficult to resist or control; powerful. "The stag was too hard for the horse." (L'Estrange) " A power which will be always too hard for them." (Addison) 5. Difficult to bear or endure; not easy to put up with or consent to; hence, severe; rigorous; oppressive; distressing; unjust; grasping; as, a hard lot; hard times; hard fare; a hard winter; hard conditions or terms. "I never could drive a hard bargain." (Burke) 6. Difficult to please or influence; stern; unyielding; obdurate; unsympathetic; unfeeling; cruel; as, a hard master; a hard heart; hard words; a hard character. 7. Not easy or agreeable to the taste; stiff; rigid; ungraceful; repelling; as, a hard style. "Figures harder than even the marble itself." (Dryden) 8. Rough; acid; sour, as liquors; as, hard cider. 9. (Pron) Abrupt or explosive in utterance; not aspirated, sibilated, or pronounced with a gradual change of the organs from one position to another;- said of certain consonants, as c in came, and g in go, as distinguished from the same letters in center, general, etc. 10. Wanting softness or smoothness of utterance; harsh; as, a hard tone. 11. Rigid in the drawing or distribution of the figures; formal; lacking grace of composition. Having disagreeable and abrupt contrasts in the colouring or light and shade. Hard cancer, Hard case, etc. See Cancer, Case, etc. Hard clam, or Hard-shelled clam, a smooth finishing coat of hard fine plaster applied to the surface of rough plastering. Hard lines, hardship; difficult conditions. Hard money, coin or specie, as distinguished from paper money. <zoology> Hard oyster, the northern native oyster. Hard pan, the hard stratum of earth lying beneath the soil; hence, figuratively, the firm, substantial, fundamental part or quality of anything; as, the hard pan of character, of a matter in dispute, etc. See Pan. Hard rubber. See Rubber. Hard solder. See Solder. Hard water, water, which contains lime or some mineral substance rendering it unfit for washing. See Hardness.- Hard wood, wood of a solid or hard texture; as walnut, oak, ash, box, and the like, in distinction from pine, poplar, hemlock, etc.- In hard condition, in excellent condition for racing; having firm muscles;-said of race horses. Synonym: Solid, arduous, powerful, trying, unyielding, stubborn, stern, flinty, unfeeling, harsh, difficult, severe, obdurate, rigid. See Solid, and Arduous. Origin: OE. Heard, AS. Heard; akin to OS. & D. Heard, G. Hart, OHG. Harti, Icel. Harr, Dan. Haard, Sw. Hard, Goth. Hardus, Gr. Strong, strength, and also to E. -ard, as in coward, drunkard, -crat, -cracy in autocrat, democracy; cf. Skr. Kratu strength, to do, make. Gf.Hardy. Source: Websters Dictionary (01 Mar 1998) |
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