| 单词 | meitnerium |
| 释义 | meitnerium[ mahyt-nur-ee-uhm ] / maɪtˈnɜr i əm / noun Chemistry, Physics.a superheavy, synthetic, radioactive element. Symbol: Mt; atomic number: 109. Formerly un·ni·len·ni·um [yoo-ni-len-ee-uhm], /ˌyu nɪˈlɛn i əm/, el·e·ment 109 . Origin of meitneriumFirst recorded in 1990–95; named after Austrian physicist Lise Meitner. Words nearby meitneriumMeissner's corpuscle, Meissonier, -meister, Meistersinger, Meitner, meitnerium, Méjico, MEK, Meker burner, Mekhitarist, Mekka Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 British Dictionary definitions for meitneriummeitnerium / (ˈmaɪtnɪərɪəm) / nouna synthetic element produced in small quantities by high-energy ion bombardment. Symbol: Mt; atomic no: 109 Word Origin for meitneriumC20: named after Lise Meitner Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 Medical definitions for meitneriummeitnerium [ mīt-nûr′ē-əm ] n. Symbol MtA radioactive synthetic element whose longest-lived isotopes have mass numbers of 266 and 268 with half-lives of 3.4 milliseconds and 70 milliseconds. Atomic number 109. The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company. Scientific definitions for meitneriummeitnerium [ mīt-nûr′ē-əm ] MtA synthetic, radioactive element that is produced by bombarding bismuth with iron ions. Its most long-lived isotopes have mass numbers of 266 and 268 with half-lives of 3.4 milliseconds and 70 milliseconds, respectively. Atomic number 109. See Periodic Table. The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved. |
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