rutherfordium

(rut̸h′ər fördē əm, rut̸h′-)

noun

a radioactive chemical element with a very short half-life: a transactinide produced by bombarding californium or plutonium with high-energy nuclear particles: symbol, Rf; at. no., 104

Origin: ModL, after Ernest Ernest Rutherford + -ium

See rutherfordium in American Heritage Dictionary 4

noun Symbol Rf
An artificially produced radioactive element with atomic number 104 whose most long-lived isotopes have mass numbers of 253, 255, 257, and 259 with half-lives of 1.8, 1.6, 4.7, and 3.4 seconds, respectively. See Table at element.

Origin:

Origin: After Ernest Rutherford

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