beryllium

2 ENTRIES FOUND:

be·ryl·li·um

noun \bə-ˈri-lē-əm\

Definition of BERYLLIUM

:  a steel-gray light strong brittle toxic divalent metallic element used chiefly as a hardening agent in alloys — see element table

Origin of BERYLLIUM

New Latin, from Greek bēryllion
First Known Use: circa 1847

be·ryl·li·um

noun \bə-ˈril-ē-əm\   (Medical Dictionary)

Medical Definition of BERYLLIUM

: a steel-gray light strong brittle toxic bivalent metallic element used chiefly as a hardening agent in alloys—symbol Be; see element table

beryllium

noun    (Concise Encyclopedia)

Chemical element, lightest of the alkaline earth metals, chemical symbol Be, atomic number 4. It does not occur uncombined in nature but is found chiefly as the mineral beryl (of which emerald and aquamarine are gemstone varieties). Beryllium metal, particularly in alloys, has many structural and thermal applications; it is used in nuclear reactors. Beryllium has valence 2 in all its compounds, which are generally colourless and taste distinctly sweet. All soluble beryllium compounds are toxic. Beryllium oxide is used in specialized ceramics for nuclear devices, and beryllium chloride is a catalyst for organic reactions.

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