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n. Symbol Ds
An artificially produced radioactive element with atomic number 110. Isotopes having mass numbers ranging from 267 to 281 are known, with the most stable isotope (Ds-281) having a half-life of about 10 seconds. See Periodic Table.
(Elements & Compounds) a synthetic radioactive element produced in small quantities by cold fusion in a linear accelerator. Symbol: Ds; atomic no: 110
[C21: named after Darmstadt, where it was discovered]
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|Noun||1.||darmstadtium - a radioactive transuranic element|