| 单词 | uracil |
| 释义 | uracil[ yoor-uh-sil ] / ˈyʊər ə sɪl / nounBiochemistry. a pyrimidine base, C4H4N2O2, that is one of the fundamental components of RNA, in which it forms base pairs with adenine. Symbol: U Origin of uracil1905–10; ur-1 + ac(etic) + -il, of uncertain origin Words nearby uracilupwind, up yours, u quark, Ur, urachus, uracil, uraemia, uraeus, Ural, Ural-Altaic, Uralian Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 British Dictionary definitions for uraciluracil / (ˈjʊərəsɪl) / nounbiochem a pyrimidine present in all living cells, usually in a combined form, as in RNA. Formula: C 4 H 4 N 2 O 2 Word Origin for uracilC20: from uro- 1 + acetic + -ile 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 uraciluracil [ yur′ə-sĭl ] n.A pyrimidine base that is an essential constituent of RNA. The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company. Scientific definitions for uraciluracil [ yur′ə-sĭl ] A pyrimidine base that is a component of RNA. It forms a base pair with adenine during transcription. Uracil is therefore structurally analogous to thymine in molecules of DNA. Chemical formula: C4H4N2O2. The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved. |
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