nounpl. -·ta or -·tums
a free fold of the peritoneum connecting the stomach and certain other visceral organs: the greater omentum covers the stomach and intestines like an apron over their anterior surfaces, while the lesser omentum forms a partial covering of the stomach and common bile duct
Origin of omentumL: an unverified form o- ( from Indo-European base an unverified form eu-, to put on from source Classical Latin exuere, to strip off: see exuviae) + -mentum, -ment
nounpl. o·men·ta, or o·men·tums
One of the folds of the peritoneum that connect the stomach with other abdominal organs, especially:
a. The greater omentum.
b. The lesser omentum.
Origin of omentumLatin ōmentum perhaps a dialectal variant of ūmentum ( from earlier ovimentum ) ( ov(i)- to put on, cover ) ( -uere ) ( in Latin induere to put on ; see indumentum. ) ( -mentum noun suffix ) or perhaps from an Italic source akin to Umbrian umen and Latin unguen fat, fatty substance (since the greater omentum is rich in fat) and Latin unguentum salve ; see unguent.