| ECG | Electro-Cardio-Graphy(-Gram); ½ÉÀüµµ = EKG 1. Conducting System Structu... |
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| HME | Health Media Education; heat and moisture exchanger; heat, massage, and exercise |
| LMP | Last Menstrual Period; ÃÖÁ¾ ¿ù°æ±â |
| AMPLE | allergies, medications, past medical history, last meal, events preceding present condition |
| DLMP | date of last menstrual period |
| LOCF | Last Observation Carried Forward |
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| LMP | last menstrual period |
| LAST | left anterior small thoracotomy |
| CID | Collision Induced Dissociation |
| CAD | Collision activated dissociation |
| last | 1. A load; a heavy burden; hence, a certain weight or measure, generally estimated at 4,000 lbs, but varying for different articles and in different countries. In England, a last of codfish, white herrings, meal, or ashes, is twelve barrels; a last of corn, ten quarters, or eighty bushels, in some parts of England, twenty-one quarters; of gunpowder, twenty-four barrels, each containing 100 lbs; of red herrings, twenty cades, or 20,000; of hides, twelve dozen; of leather, twenty dickers; of pitch and tar, fourteen barrels; of wool, twelve sacks; of flax or feathers, 1,700 lbs. 2. The burden of a ship; a cargo. Origin: As. Hlaest, fr. Hladan to lade; akin to OHG. Hlast, G, D, Dan, & Sw. Last: cf. F. Laste, last, a last, of German or Dutch origin. See Lade. 1. Being after all the others, similarly classed or considered, in time, place, or order of succession; following all the rest; final; hindmost; farthest; as, the last year of a century; the last man in a line of soldiers; the last page in a book; his last chance. "Also day by day, from the first day unto the last day, he read in the book of the law of God." (Neh. Viii. 18) "Fairest of stars, last in the train of night." (Milton) 2. Next before the present; as, I saw him last week. 3. Supreme; highest in degree; utmost. "Contending for principles of the last importance." (R. Hall). 4. Lowest in rank or degree; as, the last prize. 5. Farthest of all from a given quality, character, or condition; most unlikely; having least fitness; as, he is the last person to be accused of theft. at last, at the end of a certain period; after delay. "The duke of Savoy felt that the time had at last arrived." . At the last. [Prob. Fr. AS. On laste behind, following behind, fr. Last race, track, footstep. See Last mold of the foot] At the end; in the conclusion. "Gad, a troop shall overcome him; but he shall overcome at the last." . Last heir, the person to whom lands escheat for want of an heir. On one's last legs, at, or near, the end of one's resources; hence, on the verge of failure or ruin, especially in a financial sense. To breathe one's last, to die. To the last, to the end; till the conclusion. "And blunder on in business to the last." (Pope) Synonym: at Last, At Length. These phrases both denote that some delayed end or result has been reached. at length implies that a long period was spent in so doing; as, after a voyage of more than three months, we at Length arrived safe. At last commonly implies that something has occurred (as interruptions, disappointments, etc) which leads us to emphasize the idea of having reached the end; as, in spite of every obstacle, we have at last arrived. Origin: OE. Last, latst, contr. Of latest, superl. Of late; akin to OS. Lezt, lazt, last, D. Laatst, G. Letzt. See Late, and cf. Latest. A wooden block shaped like the human foot, on which boots and shoes are formed. "The cobbler is not to go beyond his last." (L'Estrange) Darning last, a smooth, hard body, often egg-shaped, put into a stocking to preserve its shape in darning. Origin: AS. Lasttrace, track, footstep; akin to D. Leest a last, G. Leisten, Sw. Last, Dan. Laest, Icel. Leistr the foot below the ankle, Goth. Laists track, way; from a root signifying, to go. Cf. Last, Learn, Delirium. Source: Websters Dictionary (01 Mar 1998) |
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| heat of dissociation | The heat (expressed in calories or joules) expended in the dissociation of 1 mol of a substance into specified products. (05 Mar 2000) |
| acid dissociation constant | <chemistry> This is the equilibrium constant for the breaking apart of a weak acid into its hydrogen and conjugate base in a water solution. (09 Oct 1997) |
| albuminocytologic dissociation | Increased protein in the cerebrospinal fluid without increase in cell count, characteristic of the Guillain-Barre syndrome; it is also associated with spinal block and with intracranial neoplasia, and is seen in the last phases of poliomyelitis. (05 Mar 2000) |
| atrial dissociation | Mutually independent beating of the two atria or of parts of the atria. (05 Mar 2000) |
| atrioventricular dissociation | Any situation in which atria and ventricles are activated and contract independently, as in complete A-V block, more specifically, the dissociation between atria and ventricles that results from slowing of the atrial pacemaker or acceleration of the ventricular pacemaker at nearly equal (rarely equal) rates, each depolarising its own chamber, thus interfering with depolarisation by the other (interference-dissociation). (05 Mar 2000) |
| A-V dissociation | Any situation in which atria and ventricles are activated and contract independently, as in complete A-V block, more specifically, the dissociation between atria and ventricles that results from slowing of the atrial pacemaker or acceleration of the ventricular pacemaker at nearly equal (rarely equal) rates, each depolarising its own chamber, thus interfering with depolarisation by the other (interference-dissociation). (05 Mar 2000) |
| base dissociation constant | <chemistry> This is the equilibrium constant for the reaction in which a weak base breaks apart in water to form its conjugate acid and hydroxide ion. (09 Oct 1997) |
| bond dissociation energy | This is the energy needed to break the bonds between two linked atoms. (09 Oct 1997) |
| molecular dissociation theory | A theory, pertaining to colour vision, that gray is the earliest of colour sensations, from which are derived, by molecular change, two paired substances that, respectively, detect yellow and blue, and that the yellow gives rise to paired substances for detection of red and green. Synonym: Ladd-Franklin theory. (05 Mar 2000) |
| complete atrioventricular dissociation | A-V dissociation not interrupted by ventricular captures. Synonym: complete A-V block. (05 Mar 2000) |
| pupillary light-near dissociation | A stronger near pupil response than light response; due to weak pupillomotor input, Argyll Robertson pupil, dorsal midbrain syndrome, or to misdirection of ciliary muscle fibres into the iris sphincter. Synonym: light-near dissociation. (05 Mar 2000) |
| sleep dissociation | <neurology, physiology> A condition that occurs in REM stage sleep. There is no movement of the skeletal muscles in this stage of sleep. See: REM stage sleep. (27 Sep 1997) |
| syringomyelic dissociation | Loss of pain and temperature sensation with relative retention of tactile sensation, related to a cavity in the central portion of the cord interrupting the decussation of nerve fibres. (05 Mar 2000) |
| dissociation | 1. The act of separating or state of being separated. 2. <chemistry> The separation of a molecule into two or more fragments (atoms, molecules, ions or free radicals) produced by the absorption of light or thermal energy or by solvation. 3. <psychology> A defense mechanism in which a group of mental processes are segregated from the rest of a person's mental activity in order to avoid emotional distress, as in the dissociative disorders or in which an idea or object is segregated from its emotional significance, in the first sense it is roughly equivalent to splitting, in the second, to isolation. 4. A defect of mental integration in which one or more groups of mental processes become separated off from normal consciousness and, thus separated, function as a unitary whole. Origin: L. Sociatio = union (18 Nov 1997) |
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