from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A high-melting, lightweight, corrosion-resistant, rigid, steel-gray metallic element used as an aerospace structural material, as a moderator and reflector in nuclear reactors, and in a copper alloy used for springs, electrical contacts, and nonsparking tools. Atomic number 4; atomic weight 9.0122; melting point 1,278°C; boiling point 2,970°C; specific gravity 1.848; valence 2. See Table at element.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The chemical element with an atomic number of 4; a light metal with specialist industrial applications.
from the GNU version of the Collaborative International Dictionary of English
- n. A metallic element found in the beryl. See glucinum.
from The Century Dictionary and Cyclopedia
- n. Same as glucinum.
- n. Some evidence has lately been brought forward which indicates that another element may perhaps be present in beryllium, which has heretofore been supposed to be simple.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a light strong brittle grey toxic bivalent metallic element
From beryl.(American Heritage® Dictionary of the English Language, Fourth Edition)
From New Latin beryllium, from beryllus, from Ancient Greek βήρυλλος (berullos, "beryl"), + -ium. (Wiktionary)