| jam | 1. A mass of people or objects crowded together; also, the pressure from a crowd; a crush; as, a jam in a street; a jam of logs in a river. 2. An injury caused by jamming. A preserve of fruit boiled with sugar and water; as, raspberry jam; currant jam; grape jam. Jam nut. See Check nut, under Check. Jam weld, a butt weld. See Butt. Origin: Prob. Fr. Jam, v.; but cf. Also Ar. Jamad ice, jelly, jamid congealed, jamd congelation, ice. <chemical> See Jamb. Source: Websters Dictionary (01 Mar 1998) |
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| jamaica | One of the West India is islands. Jamaica ginger, a variety of ginger, called also white ginger, prepared in Jamaica from the best roots, which are deprived of their epidermis and dried separately. Jamaica pepper, allspice. <botany> Jamaica rose, a West Indian melastomaceous shrub (Blakea trinervis), with showy pink flowers. Source: Websters Dictionary (01 Mar 1998) |
| Jamaican vomiting sickness | An acute and frequently fatal vomiting disease associated with central nervous system symptoms and marked hypoglycaemia, caused by eating unripe ackee fruit of Blighia spaida, a tree common in Jamaica. Synonym: Jamaican vomiting sickness. (05 Mar 2000) |
| jamaicine | <chemistry> An alkaloid said to be contained in the bark of Geoffroya inermis, a leguminous tree growing in Jamaica and Surinam. Synonym: jamacina. Origin: From Jamaica. Source: Websters Dictionary (01 Mar 1998) |
| jamais vu | From the French, meaning never seen, the illusion that the familiar does not seem familiar, the opposite of the feeling of deja vu. (12 Dec 1998) |
| jamb | 1. The vertical side of any opening, as a door or fireplace; hence, less properly, any narrow vertical surface of wall, as the of a chimney-breast or of a pier, as distinguished from its face. 2. <chemical> Any thick mass of rock which prevents miners from following the lode or vein. Origin: Prov. E. Jaumb, jaum, F. Jambe a leg, jambe de force a principal rafter. See Gambol. Source: Websters Dictionary (01 Mar 1998) |
| jambolana | <botany> A myrtaceous tree of the West Indies and tropical America (Calyptranthes Jambolana), with astringent bark, used for dyeing. It bears an edible fruit. Origin: Cf. Pg. Jambol<atil/o a kind of tropical fruit. Source: Websters Dictionary (01 Mar 1998) |
| James fibres | Atrio-His bundle connections thought to be the basis for the short P-R interval syndrome; these fibre's should be distinguished from the internodal tracts of the atrium, sometimes referred to as "James tracts." Synonym: James tracts. (05 Mar 2000) |
| James Lind | <person> This Edinburgher was an apprentice to a surgeon,but entered the navy before getting his M.D., and remained for nine years. He left the service and received his degree from the University of Edinburgh. Lind became physician to the Haslar Naval Hospital near Portsmouth where he had 300 to 1,000 cases of scurvy under his care at all times (for 25 years). He published three important texts: Treatise of the Scurvy (1753), An Essay on the most Effectual means of Preserving the Health of Seamen in the Royal Navy (1757), and An Essay on the Diseases Incidental to Europeans in Hot Climates. The signs and symptoms of scurvy may be a pale and bloated skin, listlessness, an aversion to exercise, swollen gums, halitosis, anserine or "goose pimple" skin, ecchymosis, and oedema legs. This surgeon died in 1794, but that same year a squadron was at sea for 23 consecutive weeks without a single case of scurvy - this dreadful disease was never a problem following the pioneer attention of young Mr. James Lind. James Lind, the British naval surgeon, is spoken of as the Father of Nautical Medicine largely because of his accomplishment in preventing scurvy in the British navy by using limes. And this is the reason today that English sailors are called "Limies." Lived: 1716-1794. (18 Nov 1997) |
| James Parkinson | <person> This English physician is chiefly remembered for his 66-page "Essay on the Shaking Palsy" (first edition is valued at |
| James tracts | Atrio-His bundle connections thought to be the basis for the short P-R interval syndrome; these fibre's should be distinguished from the internodal tracts of the atrium, sometimes referred to as "James tracts." Synonym: James tracts. (05 Mar 2000) |
| James Watson | <person> An American biochemist and alumnus of Indiana University born in 1928 who was one of three people to win the Nobel Prize in 1962 for the category of physiology or medicine. He and Francis Crick, an English biologist, discovered the double-stranded helix structure of the DNA molecule and built the Watson-Crick model of this structure. Their work was heavily based on the work of Maurice Wilkins (who also won the Nobel Prize in physiology or medicine in 1962) and Rosalind Franklin (who died before the 1962 Nobel Prize winners were selected). The model they postulated is the accepted model used today. Lived: 1928- (13 Nov 1997) |
| james's powder | <medicine> Antimonial powder, first prepared by Dr. James, ar English physician. Synonym: fever powder. Source: Websters Dictionary (01 Mar 1998) |
| James, George | <person> 20th century U.S. Radiologist. See: Swyer-James syndrome, Swyer-James-MacLeod syndrome. (05 Mar 2000) |
| James, Thomas | <person> U.S. Cardiologist and physiologist, *1925. See: James fibres, James tracts. (05 Mar 2000) |