| beryl | <chemical> A mineral of great hardness, and, when transparent, of much beauty. It occurs in hexagonal prisms, commonly of a green or bluish green colour, but also yellow, pink, and white. It is a silicate of aluminium and glucinum (beryllium). The aquamarine is a transparent, sea-green variety used as a gem. The emerald is another variety highly prized in jewelry, and distinguished by its deep colour, which is probably due to the presence of a little oxide of chromium. Origin: F. Beryl, OF. Beril, L. Beryllus, Gr, prob. Fr. Skr. Vaidrya. Cf. Brilliant. Source: Websters Dictionary (01 Mar 1998) |
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| berylliosis | <chest medicine> Beryllium exposure may produce acute pneumonitis or chronic interstitial pneumonia. Can be histologically indistinguishable from sarcoidosis. (27 Sep 1997) |
| beryllium | <chemistry> A metallic element found in the beryl. See Glucinum. Source: Websters Dictionary (01 Mar 1998) |
| beryllium granuloma | A sarcoid-like granulomatous reaction to exposure to inhaled beryllium, or skin cuts by fluorescent lamps. (05 Mar 2000) |
| berylloid | <chemistry> A solid consisting of a double twelve-sided pyramid; so called because the planes of this form occur on crystals of beryl. Origin: Beryl. Source: Websters Dictionary (01 Mar 1998) |