Webster's Revised Unabridged Dictionary · 1913

Abdominal

Abdominal ({not transcribed}) , adjective

[Compare French abdominal.]

1.
Of or pertaining to the abdomen; ventral; as, the abdominal regions, muscles, cavity.
2.
(Zoology) Having abdominal fins; belonging to the Abdominales; as, abdominal fishes.
Collocations (1)
Abdominal ring (Anatomy) , a fancied ringlike opening on each side of the abdomen, external and superior to the pubes; -- called also inguinal ring.

Abdominal , noun

A fish of the group Abdominales.