| 单词 | cytosine |
| 释义 | cytosine[ sahy-tuh-seen, -zeen, -sin ] / ˈsaɪ təˌsin, -ˌzin, -sɪn / noun Biochemistry.a pyrimidine base, C4H5N3O, that is one of the fundamental components of DNA and RNA, in which it forms a base pair with guanine. Symbol: C Compare cytidine, cytidine monophosphate. Origin of cytosine<German Cytosin (1894); see cyto-, -ose2, -ine2 Words nearby cytosinecytoplasmic bridge, cytoplasmic inclusion body, cytoplasmic inheritance, cytoplast, cytoreductive therapy, cytosine, cytosine arabinoside, cytosine ribonucleoside, cytosis, cytoskeleton, cytosmear Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 British Dictionary definitions for cytosinecytosine / (ˈsaɪtəsɪn) / nouna white crystalline pyrimidine occurring in nucleic acids; 6-amino-2-hydroxy pyrimidine. Formula: C 4 H 5 N 3 OSee also DNA, RNA 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 cytosinecytosine [ sī′tə-sēn′ ] n.A pyrimidine base that is an essential constituent of RNA and DNA. The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company. Scientific definitions for cytosinecytosine [ sī′tə-sēn′ ] A pyrimidine base that is a component of DNA and RNA, forming a base pair with guanine. Chemical formula: C4H5N3O. The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved. |
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