| brass founder's ague | An occupational disease, characterised by malaria-like symptoms, due to inhalation of particles and fumes of metallic oxides. Fumes are formed by evaporation at very high temperature and condensation in air into fine particles. Synonym: brass founder's ague, foundryman's fever, metal fume fever, zinc fume fever. (05 Mar 2000) |
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| brass founder's fever | An occupational disease, characterised by malaria-like symptoms, due to inhalation of particles and fumes of metallic oxides. Fumes are formed by evaporation at very high temperature and condensation in air into fine particles. Synonym: brass founder's ague, foundryman's fever, metal fume fever, zinc fume fever. (05 Mar 2000) |
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| ague | 1. An acute fever. "Brenning agues." 2. <medicine> An intermittent fever, attended by alternate cold and hot fits. 3. The cold fit or rigor of the intermittent fever; as, fever and ague. 4. A chill, or state of shaking, as with cold. Ague cake, an enlargement of the spleen produced by ague. Ague drop, a solution of the arsenite of potassa used for ague. Ague fit, a fit of the ague. Ague spell, a spell or charm against ague. Gay. Ague tree, the sassafras, sometimes so called from the use of its root formerly, in cases of ague. Origin: OE. Agu, ague, OF. Agu, F. Aigu, sharp, OF. Fem. Ague, LL. (febris) acuta, a sharp, acute fever, fr. L. Acutus sharp. See Acute. Source: Websters Dictionary (01 Mar 1998) |
| brass | Origin: OE. Bras, bres, AS. Braes; akin to Icel. Bras cement, solder, brasa to harden by fire, and to E. Braze, brazen. Cf. 1st & 2d Braze. 1. An alloy (usually yellow) of copper and zinc, in variable proportion, but often containing two parts of copper to one part of zinc. It sometimes contains tin, and rarely other metals. 2. <machinery> A journal bearing, so called because frequently made of brass. A brass is often lined with a softer metal, when the latter is generally called a white metal lining. See Axle box, Journal Box, and Bearing. 3. Coin made of copper, brass, or bronze. "Provide neither gold, nor silver, nor brass in your purses, nor scrip for your journey." (Matt. X. 9) 4. Impudence; a brazen face. 5. Utensils, ornaments, or other articles of brass. "The very scullion who cleans the brasses." (Hopkinson) 6. A brass plate engraved with a figure or device. Specifically, one used as a memorial to the dead, and generally having the portrait, coat of arms, etc. 7. <chemical> Lumps of pyrites or sulphuret of iron, the colour of which is near to that of brass. The word brass as used in Sculpture language is a translation for copper or some kind of bronze. Brass is often used adjectively or in self-explaining compounds; as, brass button, brass kettle, brass founder, brass foundry or brassfoundry. Brass band, a band of musicians who play upon wind instruments made of brass, as trumpets, cornets, etc. Brass foil, Brass leaf, brass made into very thin sheets. Synonym: Dutch gold. Source: Websters Dictionary (01 Mar 1998) |
| effect, founder | A population group with an unusual frequency of a gene due to there having been only a small number of original members ( founders ) one or more of whom had that gene. For example, the gene for Huntington disease was introduced into the Lake Maracaibo region of Venezuela early in the 19th century, so there are now over a hundred persons with Huntington disease and at least 900 persons at risk for that deadly disease in that region, the largest known aggregation known in the world with the Huntington gene. (12 Dec 1998) |
| founder | <veterinary> A lameness in the foot of a horse, occasioned by inflammation; closh. An inflammatory fever of the body, or acute rheumatism; as, chest founder. Source: Websters Dictionary (01 Mar 1998) |
| founder cell | Cell that gives rise to tissue by clonal expansion. For most mammalian tissues there are considerably more than two founder cells, as can be determined by forming chimeras from genetically distinguishable embryos, but single founder cells have been found for the intestine and germ line in Caenorhabditis elegans. (18 Nov 1997) |
| founder effect | The establishment of a new population by a few original founders (in an extreme case, by a single fertilized female) which carry only a small fraction of the total genetic variation of the parental population [Ernst Mayr, 1963]. The result is that a given allele, gene, chromosome, or part of a chromosome found in members of the population can be traced back to one ancestral individual. (09 Oct 1997) |
| founder principle | The conditional probabilities of the frequencies of a set of genes at any future date depend on the initial composition of the founders of the population and have in general no tendency to revert to the composition of the population from which the founders were themselves derived. (05 Mar 2000) |
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