| 单词 | semilunar valve |
| 释义 | semilunar valvenoun Anatomy.either of two valves, one in the aorta and one in the pulmonary artery, consisting of a set of three crescent-shaped flaps of tissue and serving to prevent blood from flowing back into the heart after contraction. Compare aortic valve, pulmonary valve. Origin of semilunar valveFirst recorded in 1710–20 Words nearby semilunar valvesemilunar bone, semilunar cartilage, semilunar conjunctival fold, semilunar ganglion, semilunar line, semilunar valve, semimajor axis, semimatte, semimembranosus, semimembranous, semimicroanalysis Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 British Dictionary definitions for semilunar valvesemilunar valve nounanatomy either of two crescent-shaped valves, one in the aorta and one in the pulmonary artery, that prevent regurgitation of blood into the heart 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 semilunar valvesemilunar valve n.One of three semilunar segments serving as the cusps of a valve preventing regurgitation, as in the aortic valve and the pulmonary valve. The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company. |
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