from The American Heritage® Dictionary of the English Language, 4th Edition
- n. An artificially produced radioactive element with atomic number 107 whose most long-lived isotopes have mass numbers of 261, 262, and 264 with half-lives of 11.8 milliseconds, 0.1 second, and 0.44 second, respectively. Also called unnilseptium. See Table at element.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A transuranic chemical element (symbol Bh) with an atomic number of 107.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a transuranic element
After Niels Henrik David Bohr.(American Heritage® Dictionary of the English Language, Fourth Edition)
Surname of Niels Bohr + + -ium (Wiktionary)
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