bohrium

bohr·i·um  (bôr-m, br-)

n. Symbol Bh

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.

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[After Niels Henrik David Bohr.]

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bohrium

Noun

Chem an element artificially produced in minute quantities Symbol: Bh[after N. Bohr, physicist]

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bohrium  (bôr-m)

Symbol Bh

A synthetic, radioactive element that is produced by bombarding bismuth with chromium ions. Its 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. Atomic number 107. See Periodic Table.

Thesaurus

Noun

1.

bohrium - a transuranic element atomic number 107, Bh, element 107 chemical element, element - any of the more than 100 known substances (of which 92 occur naturally) that cannot be separated into simpler substances and that singly or in combination constitute all matter