| American tarantula | Eurypelma hentzii, the Arkansas tarantula; although greatly feared, its bite is relatively uncommon and harmless to humans. (05 Mar 2000) |
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| American trypanosomiasis | Trypanosomiasis caused by Trypanosoma (or Schizotrypanum) cruzi and transmitted by certain species of reduviid (triatomine) bugs. In its acute form, it is seen most frequently in young children, with swelling of the skin at the site of entry, most often the face, and regional lymph node enlargement; in its chronic form it can assume several aspects, commonly cardiomyopathy, but megacolon and megaesophagus also occur; natural reservoirs include dogs, armadillos, rodents, and other domestic, domiciliated, and wild mammals. Synonym: Chagas' disease, Chagas-Cruz disease, Cruz trypanosomiasis. (05 Mar 2000) |
| American Type Culture Collection | <cell culture> A key resource for cultured cells, located in Rockville, USA. (12 Dec 1998) |
| americas | <geography> The general name for north america, central america, and south america unspecified or combined. (12 Dec 1998) |
| americium | <chemical, element> Americium. A completely man-made radioactive actinide with atomic symbol am, atomic number 95, and atomic weight 243. Its valence can range from +3 to +6. Because of its nonmagnetic ground state, it is an excellent superconductor. It is also used in bone mineral analysis and as a radiation source for radiotherapy. Chemical name: Americium Atomic weight: 243 (12 Dec 1998) |
| amerism | The condition or quality of not dividing into parts, segments, or merozoites. Origin: G. A-priv. + meros, part (05 Mar 2000) |
| ameristic | Endowed with amerism; not dividing into parts or segments. (05 Mar 2000) |
| Ames assay | <procedure> One of a number of procedures used to test substances for likely ability to cause cancer that combines the use of animal tissue to generate active metabolites of the substance with a test for mutagenicity in bacteria. (18 Nov 1997) |
| Ames test | <procedure> One of a number of procedures used to test substances for likely ability to cause cancer that combines the use of animal tissue to generate active metabolites of the substance with a test for mutagenicity in bacteria. (18 Nov 1997) |
| Ames, Bruce | <person> U.S. Molecular geneticist, *1928. See: Ames assay, Ames test. (05 Mar 2000) |
| ametabola | <zoology> A group of insects which do not undergo any metamorphosis. Alternative forms: Ametabolia. Source: Websters Dictionary (01 Mar 1998) |
| ametabolian | <zoology> Of or pertaining to insects that do undergo any metamorphosis. Origin: Gr. Unchangeable; priv. + changeable, to change. Source: Websters Dictionary (01 Mar 1998) |
| ametabolous | <zoology> Not undergoing any metamorphosis; as, ametabolic insects. Source: Websters Dictionary (01 Mar 1998) |
| amethopterin | <drug> A folic acid analogue and inhibitor of dihydrofolate reductase. A potent cytotoxic agent used in the treatment of acute leukaemia. (18 Nov 1997) |
| amethyst | 1. <chemical> A variety of crystallized quartz, of a purple or bluish violet colour, of different shades. It is much used as a jeweler's stone. Oriental amethyst, the violet-blue variety of transparent crystallized corundum or sapphire. 2. A purple colour in a nobleman's escutcheon, or coat of arms. Origin: F. Ametiste, amatiste, F. Amethyste, L. Amethystus, fr. Gr. Without drunkenness; as a noun, a remedy for drunkenness, the amethyst, supposed to have this power; priv. + to be drunken, strong drink, wine. See Mead. Source: Websters Dictionary (01 Mar 1998) |
Synonyms : America
Synonyms :
| amelogenesis |
the developmental process of forming tooth enamel
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| amentia |
idiocy: extreme mental retardation
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| amenorrhea |
absence or suppression of normal menstrual flow
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| American leishmaniasis |
mucocutaneous leishmaniasis: a form of leishmaniasis endemic in Mexico and Central American and South America; sores are limited to the skin and mucosa
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| American Sign Language |
ASL: the sign language used in the United States
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| AME | things that make you comfortable and at ease |
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| AME | pleasantness resulting from agreeable conditions |
| AME | absence or suppression of normal menstrual flow |
| AME | related to the suppression of normal menstrual flow for any reason other than pregnancy |
| AME | related to the suppression of normal menstrual flow for any reason other than pregnancy |
| AME | absence or suppression of normal menstrual flow |
| AME | related to the suppression of normal menstrual flow for any reason other than pregnancy |
| AME | related to the suppression of normal menstrual flow for any reason other than pregnancy |
| AME | a cylindrical spikelike inflorescence |
| AME | (of plants) bearing or characterized by aments or catkins |
| AME | extreme mental retardation |
| AME | used in some classification systems for plants that bear catkins |