| bard | 1. The exterior covering of the trunk and branches of a tree; the rind. 2. Specifically, Peruvian bark. Bark bed. See Bark stove (below). Bark pit, a pit filled with bark and water, in which hides are steeped in tanning. <botany> Bark stove, a glazed structure for keeping tropical plants, having a bed of tanner's bark (called a bark bed) or other fermentable matter which produces a moist heat. Origin: Akin to Dan. & Sw. Bark, Icel. Borkr, LG. & HG. Borke. Source: Websters Dictionary (01 Mar 1998) |
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| Cannon-Bard theory | The view that the feeling aspect of emotion and the pattern of emotional behaviour are controlled by the hypothalamus. (05 Mar 2000) |
| close bite | A small distance between the maxillary and mandibular arches. Synonym: close bite. (05 Mar 2000) |
| close contact infection | <epidemiology> An infection which requires close contact, other than sexual contact, between susceptible and infectious individuals, for transmission. (05 Dec 1998) |
| DNA entry nuclease | <chemical> Mw 75kda; from membranes of competent bacillus subtilis cells; shows DNA-binding and nuclease activity; believed to be involved in entry of DNA into competent b subtilis cells (26 Jun 1999) |
| entry | Origin: OE. Entree, entre, F. Entree, fr. Entrer to enter. See Enter, and cf. Entree. 1. The act of entering or passing into or upon; entrance; ingress; hence, beginnings or first attempts; as, the entry of a person into a house or city; the entry of a river into the sea; the entry of air into the blood; an entry upon an undertaking. 2. The act of making or entering a record; a setting down in writing the particulars, as of a transaction; as, an entry of a sale; also, that which is entered; an item. "A notary made an entry of this act." (Bacon) 3. That by which entrance is made; a passage leading into a house or other building, or to a room; a vestibule; an adit, as of a mine. "A straight, long entry to the temple led." (Dryden) 4. The exhibition or depositing of a ship's papers at the customhouse, to procure license to land goods; or the giving an account of a ship's cargo to the officer of the customs, and obtaining his permission to land the goods. See Enter, 8, and Entrance. 5. 5. The actual taking possession of lands or tenements, by entering or setting foot on them. A putting upon record in proper form and order. The act in addition to breaking essential to constitute the offense or burglary. Bill of entry. See Bill. Double entry, Single entry. See Bookkeeping. Entry clerk, a writ issued for the purpose of obtaining possession of land from one who has unlawfully entered and continues in possession. Source: Websters Dictionary (01 Mar 1998) |
| entry zone | The area of the dorsal funiculus of the spinal cord, medial to the tip of the posterior horn, in which the entering fibres of the posterior nerve root divide into ascending and descending branches. (05 Mar 2000) |
| absolute system of units | A system based on absolute units accepted as being fundamental (length, mass, time) and from which other units (force, energy or work, power) are derived; such system's in common use are the foot-pound-second, centimeter-gram-second, and meter-kilogram-second system's. (05 Mar 2000) |
| absorbent system | <anatomy> The tissues and organs (including the bone marrow, spleen, thymus and lymph nodes) that produce and store cells that fight infection and the network of vessels that carry lymph. (12 May 1997) |
| alimentary system | The organs that are responsible for getting food into and out of the body and for making use of food to keep the body healthy. These include the mouth, oesophagus, stomach, liver, gallbladder, pancreas, small intestine, colon, and rectum. (12 Dec 1998) |
| anterolateral system | A composite bundle of fibres, located in the ventrolateral part of the lateral funiculus, containing spinothalamic, spinohypothalamic, spinoreticular, and spinomesencephalic (spinotectal, spinal to periaqueductal grey, etc.) fibres; occupies the combined areas of the spinal white matter historically divided into anterior and lateral spinothalamic tracts; located in white matter ventral to the denticulate ligament, hence the anatomical basis for the anterolateral cordotomy; concerned with the transmission of nociceptive and thermal information and with crude (nondiscriminative) touch. (05 Mar 2000) |
| anti-allergic and respiratory system agents | A collective term for drugs used to treat allergic reactions as well as those drugs that produce an effect on the respiratory system. (12 Dec 1998) |
| arch-loop-whorl system | See: Galton's system of classification of fingerprints. (05 Mar 2000) |
| association system | Groups or tracts of nerve fibres interconnecting different regions of one and the same major subdivision of the central nervous system, such as the various areas of the cerebral cortex or the various segments of the spinal cord. (05 Mar 2000) |
| autonomic nervous system | <anatomy> Neurons that are not under conscious control, comprising two antagonistic components, the sympathetic and parasympathetic nervous systems. The autonomic nervous system regulates key functions including the activity of the cardiac (heart) muscle, smooth muscles (e.g., of the gut), and glands. The autonomic nervous system has two divisions: 1. The sympathetic nervous system that accelerates the heart rate, constricts blood vessels, and raises blood pressure. 2. The parasympathetic nervous system slows the heart rate, increases intestinal and gland activity, and relaxes sphincter muscles. (03 Jul 1999) |