o·men·tum (ō-měn'təm) n.
pl.o·men·ta (-tə) or o·men·tums One of the folds of the peritoneum that connect the stomach with other abdominal organs, especially:
omentum o·men·tum (ō-měn'təm) n.pl.o·men·tums or o·men·ta (-tə) One of the folds of the peritoneum that connect the stomach with other abdominal organs, especially the greater omentum or the lesser omentum.