ABDOM'INAL, adjective Pertaining to the lower belly.
ABDOM'INAL, noun plural abdominals. In ichthyology the abdominals are a class of fish whose ventral fins are placed behind the pectoral, and which belong to the division of bony fish. The class contains nine genera - the loche, salmon, pike, argentine, atherine, mullet, flying fish, herring and carp.
ABDOM'INAL RING, or INGUINAL RING, an oblong tendinous ring in both groins through which pass the spermatic cord in men, and the round ligaments of the uterus in women.