say it: ab-DAH-muh-nuhl
abdominal is a noun and adjective meaning "the muscles of the abdomen". It carries 2 recorded senses.
the muscles of the abdomen
of or relating to or near the abdomen
“abdominal muscles”
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for abdominal come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.