SEMILUNAR • FREE TRANSLATOR.ORG • Definition of Semilunar

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noun

Semilunar n. (Anat.) The semilunar bone.

adjective

Semilunar adj. Shaped like a half moon.

Semilunar bone (Anat.), a bone of the carpus; the lunar. See Lunar, n.

Semilunar valves, or Sigmoid valves (Anat.), the valves at the beginning of the aorta and of the pulmonary artery which prevent the blood from flowing back into the ventricle.

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Etymology of 'Semilunar'

Collaborative International Dictionary of English 0.48

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"Semilunar" Quotes from Famous Books

... regularity. First is heard a comparatively long, dull sound, then a short, sharp sound, then a pause, and then the long, dull sound again. The first sound is caused mainly by the tricuspid and mitral valves, and the second is the result of sudden closure of the semilunar valves. ...

— The People's Common Sense Medical Adviser in Plain English • R. V. Pierce