OMENTAL
O*men"tal, a. (Anat.)
Defn: Of or pertaining to an omentum or the omenta.
OMENTUM
O*men"tum, n.; pl. Omenta. Etym: [L.] (Anat.)
Defn: A free fold of the peritoneum, or one serving to connect viscera, support blood vessels, etc.; an epiploön.
Note: The great, or gastrocolic, omentum forms, in most mammals, a great sac, which is attached to the stomach and transverse colon, is loaded with fat, and covers more or less of the intestines; the caul. The lesser, or gastrohepatic, omentum connects the stomach and liver and contains the hepatic vessels. The gastrosplenic omentum, or ligament, connects the stomach and spleen.
OMER
O"mer, n. Etym: [Cf. Homer.]
Defn: A Hebrew measure, the tenth of an ephah. See Ephah. Ex. xvi. 36.
OMICRON
O*mi"cron, n. [Written also omikron.] [NL., fr. Gr. O o. See Micro-.]
Defn: Lit., the little, or short, O, o; the fifteenth letter of the
Greek alphabet.
OMILETICAL
Om`i*let"ic*al, a.