| 单词 | lactam |
| 释义 | lactam[ lak-tam ] / ˈlæk tæm / noun Chemistry.any of a group of cyclic amides characterized by the NHCO group, derived from aminocarboxylic acids by the intramolecular elimination of water from the amino and carboxylic groups. Origin of lactamFirst recorded in 1880–85; lact(one) + am(ide) Words nearby lactamLa Crosse encephalitis, lact-, lactacidemia, lactacidosis, lactalbumin, lactam, lactarian, lactary, lactase, lactate, lactate dehydrogenase Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 British Dictionary definitions for lactamlactam / (ˈlæktæm) / nounchem any of a group of inner amides, derived from amino acids, having the characteristic group -CONH- Word Origin for lactamC20: from lact (one) + am (ide) 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 lactamlactam [ lăk′tăm′ ] n.An amide formed from amino carboxylic acids containing a keto group in a ring configuration, as seen in purines, pyrimidines, and antibiotics. It is tautomeric to lactim. The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company. |
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