darmstadtium

[ dahrm-stat-ee-uhm ]
/ dɑrmˈstæt i əm /

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. Its former name, unnilium, is from Latin ūn(us) “one” + nīl “nothing” + New Latin -ium; see origin at one, nil, -ium
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Medical definitions for darmstadtium

darmstadtium
[ därm-shtätē-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

darmstadtium
[ därm′shtätē-əm ]

Ds

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.