omental bursa vs lesser peritoneal cavity

omental bursa and lesser peritoneal cavity both are nouns.

Word	Noun	Adjective	Verb	Adverb
omental bursa	Yes	No	No	No
lesser peritoneal cavity	Yes	No	No	No

As nouns, omental bursa and lesser peritoneal cavity are synonyms defined as:

omental bursa and lesser peritoneal cavity: an isolated part of the peritoneal cavity that is dorsal to the stomach

Other synonyms of omental bursa include bursa omentalis.

omental bursa (noun)	lesser peritoneal cavity (noun)
an isolated part of the peritoneal cavity that is dorsal to the stomach	an isolated part of the peritoneal cavity that is dorsal to the stomach