WordReference Random House Unabridged Dictionary of American English © 2017
o•men•tum  (ō mentəm),USA pronunciation n., pl.  -ta (-tə).USA pronunciation [Anat.]
  1. Anatomya fold of the peritoneum connecting the stomach and the abdominal viscera forming a protective and supportive covering. Cf.  greater omentum, lesser omentum. 
o•mental, adj. 
  • Latin ōmentum caul surrounding the intestines
  • 1535–45


Collins Concise English Dictionary © HarperCollins Publishers::

omentum /əʊˈmɛntəm/ n ( pl -ta / -tə/)
  1. a double fold of peritoneum connecting the stomach with other abdominal organs
Etymology: 16th Century: from Latin: membrane, esp a caul, of obscure origin



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