| aureolic acid | An antibiotic produced by Streptomyces argillaceus and S. Tanashiensis; possesses antineoplastic activity. Synonym: aureolic acid, mitramycin. (05 Mar 2000) |
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| auri- | Combining form denoting the ear. See: ot-, oto-. Origin: L. Auris, an ear. (05 Mar 2000) |
| auriasis | A permanent slate-gray discoloration of the skin and sclera resulting from deposition of gold in the connective tissue of the skin and eye together with increased melanin formation after administration of gold. Synonym: auriasis, aurochromoderma, chrysoderma. Origin: G. Chrysos, gold (05 Mar 2000) |
| auric | 1. Of or pertaining to gold. 2. <chemistry> Pertaining to, or derived from, gold; said of those compounds of gold in which this element has its higher valence; as, auric oxide; auric chloride. Origin: L. Aurum gold. Source: Websters Dictionary (01 Mar 1998) |
| aurichalceous | <zoology> Brass-coloured. Origin: L. Aurichalcum, for orichalcum brass. Source: Websters Dictionary (01 Mar 1998) |
| aurichalcite | <chemical> A hydrous carbonate of copper and zinc, found in pale green or blue crystalline aggregations. It yields a kind of brass on reduction. See: Aurichalceous. Source: Websters Dictionary (01 Mar 1998) |
| auricle | <botany> An ear-shaped appendage at the base of a leaf, leaflet or corolla lobe. Adj. Auriculate. (09 Oct 1997) |
| auricle of atrium | A small conical ("ear-shaped") pouch projecting from the upper anterior portion of each atrium of the heart, increasing slightly the atrial volume. See: auricle of left atrium, auricle of right atrium. Synonym: auricula atrialis, atrial auricle, atrial auricula, auricle, auricula, auricular appendage, auricular appendix, skin tag. (05 Mar 2000) |
| auricle of left atrium | The small conical projection from the left atrium of the heart. Synonym: auricula sinistra, left auricular appendage. (05 Mar 2000) |
| auricle of right atrium | The small conical projection from the right atrium of the heart. Synonym: auricula dextra, right auricular appendage. (05 Mar 2000) |
| auricula | Origin: L. Auricula. See Auricle. 1. <botany> (a) A species of Primula, or primrose, called also, from the shape of its leaves, bear's-ear. A species of Hirneola (H. Auricula), a membranaceous fungus, called also auricula Judae, or Jew's-ear. 2. <marine biology> A genus of air-breathing mollusks mostly found near the sea, where the water is brackish One of the five arched processes of the shell around the jaws of a sea urchin. (19 Mar 1998) |
| auricula atrialis | A small conical ("ear-shaped") pouch projecting from the upper anterior portion of each atrium of the heart, increasing slightly the atrial volume. See: auricle of left atrium, auricle of right atrium. Synonym: auricula atrialis, atrial auricle, atrial auricula, auricle, auricula, auricular appendage, auricular appendix, skin tag. (05 Mar 2000) |
| auricula dextra | The small conical projection from the right atrium of the heart. Synonym: auricula dextra, right auricular appendage. (05 Mar 2000) |
| auricula sinistra | The small conical projection from the left atrium of the heart. Synonym: auricula sinistra, left auricular appendage. (05 Mar 2000) |
| auricular | <anatomy> Pertaining to an auricle or to the ear, and, formerly, to an atrium of the heart. Origin: L. Auricularis (18 Nov 1997) |