abdomen : Idioms & Phrases
post-abdomen
Post`-ab*do"men noun
Etymology
Pref.Definitions
(Zoöl.) That part of a crustacean behind the cephalothorax; -- more commonly called abdomen .
Webster 1913
transverse muscle of abdomen
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noun a flat muscle with transverse fibers that forms the anterior and lateral walls of the abdominal cavity
musculus transversalis abdominis; transversus abdominis muscle; transversus abdominis.