Berylloid Ber"yl*loid, n. [Beryl + -oid.] (Crystallog.) A solid consisting of a double twelve-sided pyramid; -- so called because the planes of this form occur on crystals of beryl. [1913 Webster]

The Collaborative International Dictionary of English. 2000.

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  • berylloid — ˈberəˌlȯid noun ( s) Etymology: International Scientific Vocabulary beryll (probably from Latin beryllus) + oid; from the frequent occurrence of beryl crystals in this form : a form consisting of a double 12 sided pyramid : the dihexagonal… …   Useful english dictionary

  • berylloid — noun a solid consisting of a double twelve sided pyramid …   Wiktionary

  • berylloid — ber·yl·loid …   English syllables

  • beryllium — noun /bəˈrɪliəm/ The chemical element with an atomic number of 4; a light metal with specialist industrial applications. Syn: glucinium, glucinum See Also: beryl, beryllia, beryllide, berylline …   Wiktionary

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