- either of two crescent-shaped valves, one in the aorta and one in the pulmonary artery, that prevent regurgitation of blood into the heart
| 单词 | semilunar valve |
| 释义 | WordReference Random House Unabridged Dictionary of American English © 2024 sem′ilu′nar valve′, [Anat.]
Collins Concise English Dictionary © HarperCollins Publishers:: semilunar valve n
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