| bal | balance; balsam |
|---|---|
| bals | balsam |
| CR | calculation rate; calculus removed; calorie-restricted; cardiac rehabilitation; cardiac resuscitatio... |
| TOP | termination of pregnancy; topoisomerase |
| top | topical |
| BBTV | Banana bunchy top virus |
|---|---|
| BCTV | Beet curly top virus |
| TOP | termination of pregnancy |
| TCPO | 1,1,1,-trichloropropene-2,3-oxide |
| HOQNO | 2-(heptyl)-4-hydroxyquinoline-N-oxide |
| top | 1. To cover on the top; to tip; to cap; chiefly used in the past participle. "Like moving mountains topped with snow." (Waller) "A mount Of alabaster, topped with golden spires." (Milton) 2. To rise above; to excel; to outgo; to surpass. "Topping all others in boasting." (Shak) "Edmund the base shall top the legitimate." (Shak) 3. To rise to the top of; to go over the top of. "But wind about till thou hast topped the hill." (Denham) 4. To take off the or upper part of; to crop. "Top your rose trees a little with your knife." (Evelyn) 5. To perform eminently, or better than before. "From endeavoring universally to top their parts, they will go universally beyond them." (Jeffrey) 6. To raise one end of, as a yard, so that that end becomes higher than the other. To top off, to complete by putting on, or finishing, the top or uppermost part of; as, to top off a stack of hay; hence, to complete; to finish; to adorn. 1. A child's toy, commonly in the form of a conoid or pear, made to spin on its point, usually by drawing off a string wound round its surface or stem, the motion being sometimes continued by means of a whip. 2. A plug, or conical block of wood, with longitudital grooves on its surface, in which the strands of the rope slide in the process of twisting. Origin: CF. OD. Dop, top, OHG, MNG, & dial. G. Topf; perhaps akin to G. Topf a pot. 1. The highest part of anything; the upper end, edge, or extremity; the upper side or surface; summit; apex; vertex; cover; lid; as, the top of a spire; the top of a house; the top of a mountain; the top of the ground. "The star that bids the shepherd fold, Now the top of heaven doth hold." (Milton) 2. The utmost degree; the acme; the summit. "The top of my ambition is to contribute to that work." (Pope) 3. The highest rank; the most honorable position; the utmost attainable place; as, to be at the top of one's class, or at the top of the school. "And wears upon hisbaby brow the round And top of sovereignty." (Shak) 4. The chief person; the most prominent one. "Other . . . Aspired to be the top of zealots." (Milton) 5. The crown of the head, or the hair upon it; the head. "From top to toe" "All the stored vengeance of Heaven fall On her ungrateful top !" (Shak) 6. The head, or upper part, of a plant. "The buds . . . Are called heads, or tops, as cabbageheads." (I. Watts) 7. A platform surrounding the head of the lower mast and projecting on all sudes. It serves to spead the topmast rigging, thus strengheningthe mast, and also furnishes a convenient standing place for the men aloft. 8. A bundle or ball of slivers of comkbed wool, from which the noils, or dust, have been taken out. 9. Eve; verge; point. "He was upon the top of his marriage with Magdaleine." 10. The part of a cut gem between the girdle, or circumference, and the table, or flat upper surface. Top is often used adjectively or as the first part of compound words, usually self-explaining; as, top stone, or topstone; top-boots, or top boots; top soil, or top-soil. Top and but, a phrase used to denote a method of working long tapering planks by bringing the but of one plank to the top of the other to make up a constant breadth in two layers. <zoology> Top minnow, a small viviparous fresh water fish (Gambusia patruelis) abundant in the Southern United States. Also applied to other similar species. Origin: AS. Top; akin to OFries. Top a tuft, D. Top top, OHG. Zopf end, tip, tuft of hair, G. Zopf tuft of hair, pigtail, top of a tree, Icel. Toppr a tuft of hair, crest, top, Dan. Top, Sw. Topp pinnacle, top; of uncertain origin. Cf. Tuft. Source: Websters Dictionary (01 Mar 1998) |
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| top-shaped | <botany> Having the shape of a top; cone-shaped, with the apex downward; turbinate. Source: Websters Dictionary (01 Mar 1998) |
| top-shell | <zoology> Any one of numerous species of marine top_shaped shells of the genus Thochus, or family Trochidae. Source: Websters Dictionary (01 Mar 1998) |
| turban-top | <botany> A kind of fungus with an irregularly wrinkled, somewhat globular pileus (Helvella, or Gyromitra, esculenta). Source: Websters Dictionary (01 Mar 1998) |
| flat top waves | Activity in the electroencephalogram having a pattern suggesting a flat top; these wave's are often found in temporal lobe discharges. (05 Mar 2000) |
| balsam | 1. A resin containing more or less of an essential or volatile oil. The balsams are aromatic resinous substances, flowing spontaneously or by incision from certain plants. A great variety of substances pass under this name, but the term is now usually restricted to resins which, in addition to a volatile oil, contain benzoic and cinnamic acid. Among the true balsams are the balm of Gilead, and the balsams of copaiba, Peru, and Tolu. There are also many pharmaceutical preparations and resinous substances, possessed of a balsamic smell, to which the name balsam has been given. 2. <botany> A species of tree (Abies balsamea). An annual garden plant (Impatiens balsamina) with beautiful flowers; balsamine. 3. Anything that heals, soothes, or restores. <botany> "Was not the people's blessing a balsam to thy blood?" (Tennyson) Balsam apple, the American coniferous tree, Abies balsamea, from which the useful Canada balsam is derived. Balsam of copaiba. See Copaiba. Balsam of Mecca, balm of Gilead. Balsam of Peru, a reddish brown, syrupy balsam, obtained from a Central American tree (Myroxylon Pereirae and used as a stomachic and expectorant, and in the treatment of ulcers, etc. It was long supposed to be a product of Peru. Balsam of Tolu, a reddish or yellowish brown semisolid or solid balsam, obtained from a South American tree (Myxoxylon toluiferum). It is highly fragrant, and is used as a stomachic and expectorant. Balsam tree, any tree from which balsam is obtained, especially. The Abies balsamea. Canada balsam, Balsam of fir, Canada turpentine, a yellowish, viscid liquid, which, by time and exposure, becomes a transparent solid mass. It is obtained from the balm of Gilead (or balsam) fir (Abies balsamea) by breaking the vesicles upon the trunk and branches. See Balm. Origin: L. Balsamum the balsam tree or its resin, Gr. See Balm. Source: Websters Dictionary (01 Mar 1998) |
| balsam, Canada | <microscopy> A resin from the balsam fir Abies balsamea. Dissolved in xylene, toluene, or benzene it is used as a mountant for permanent microscopical preparations. Its refractive index may vary from 1.530 to l.545 and its softening point from room temperature to 100deg.C, these properties varying with age and solvent content. If impure it discolours with age. See: lens, Bertrand. (05 Aug 1998) |
| balsam of copaiba | The oleoresin of Copaifera officinalis and other species of Copaifera (family Leguminosae), a South American plant; copaiba oil is used as an expectorant, diuretic, and stimulant. Synonym: balsam of copaiba. Origin: Sp. (05 Mar 2000) |
| balsam of Peru | A thick, dark brown liquid balsam obtained from Toluifera pereirae (family Leguminosae), containing 60% cinnamein; used as a healing application to wounds. (05 Mar 2000) |
| Canada balsam | A yellowish liquid resin from the balsam fir, Abies balsamea (family Pinaceae); contains kinene and bornyl acetate; used for mounting histologic specimens and as a cement for lenses. Synonym: Canada turpentine. (05 Mar 2000) |
| Mecca balsam | An oleoresin from Commiphora opobalsamum (family Burseraceae), probably the myrrh of the Bible; used in perfumery. Synonym: Mecca balsam, opobalsamum. (05 Mar 2000) |
| Tolu balsam | A yellowish brown soft mass obtained from Toluifera balsamum (family Leguminosae), containing cinnamic and benzoic acids and esters; used as a stimulant expectorant. (05 Mar 2000) |
| acid oxide | An acid anhydride; an oxide of an electronegative element or radical; it can combine with water to form an acid. (05 Mar 2000) |
| alpha-pinene oxide lyase | <enzyme> From nocardia sp. Strain p18.3; catalyses the cleavage of both rings of the bicyclic structure with the formation of 2-methyl-5-isopropylhexa-2,5-dienal Registry number: EC 4.1.2.- Synonym: alpha-pinene oxide lyase (decyclizing) (26 Jun 1999) |
| aluminum bismuth oxide | A gastric antacid. Synonym: aluminum bismuth oxide. (05 Mar 2000) |
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