[ dahrm-stat-ee-uhm ]
/ dɑrmˈstæt i əm /
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noun Chemistry, Physics.
a superheavy, synthetic, radioactive element with a very short half-life. Symbol: Ds; atomic number: 110.
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Formerly un·un·nil·i·um [uhn-uh-nil-ee-uhm], /ˌʌn əˈnɪl i əm/, el·e·ment 110 .
Origin of darmstadtium
First recorded in 2000–05; named after Darmstadt, the city in Germany where it was first created.
Words nearby darmstadtium
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021
Medical definitions for darmstadtium
[ därm-shtät′ē-əm ]
n. Symbol Ds
A radioactive synthetic element whose longest-lived isotope has a half-life of 0.18 milliseconds. Atomic number 110.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Scientific definitions for darmstadtium
[ därm′shtät′ē-əm ]
A synthetic radioactive element, first produced by bombarding lead atoms with nickel atoms. It has a mass number of 281, and its most stable isotope has a half-life of over one minute. Atomic number 110. See Periodic Table.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.