abdominal

from The American Heritage® Dictionary of the English Language, 5th Edition.

• adjective Of or relating to the abdomen.
• noun An abdominal muscle.

from The Century Dictionary.

• Pertaining to the abdomen or belly; situated in or on the abdomen: as, abdominal ventral fins.
• In ichthyology, having ventral fins under the abdomen and about the middle of the body: as, an abdominal fish. See Abdominales.
• plural Certain imaginary lines drawn to divide the surface of the abdomen into regions, as given below.
• retains the name of epigastric; its lateral portions (4 4) are the right and left hypochondriac regions; the middle part of the umbilical
• is called the umbilical region, while its lateral portions (5 5) are the right and left lumbar regions; the middle portion of the hypogastric zone
• is called the hypogastric region, but sometimes the pubic region, while its lateral portions (6 6) are called the right and left iliac (or inguinal) regions. The adjoining region of the thigh, below the fold of the groin, is properly excluded.
• External, a similar oblong opening in the fascia of the obliquus externus abdominis (external oblique muscle of the abdomen), further down and nearer the mid-line of the body. These rings are respectively the inlet and outlet of the inguinal canal. Also called inguinal rings.
• noun One of the Abdominales (which see).

from the GNU version of the Collaborative International Dictionary of English.

• noun A fish of the group Abdominales.
• adjective Of or pertaining to the abdomen; ventral.
• adjective (Zoöl.) Having abdominal fins; belonging to the Abdominales.
• adjective (Anat.) a fancied ringlike opening on each side of the abdomen, external and superior to the pubes; -- called also inguinal ring.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• adjective zoology, obsolete Belonging to the order Abdominales of fish.
• noun zoology, obsolete A fish of the order Abdominales.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun the muscles of the abdomen
• adjective of or relating to or near the abdomen