Meaning of “abdomen” - Learner’s Dictionary

abdomen

noun [ C ] us uk /ˈæbdəmən/ formal

the lower part of a person or animal's body, containing the stomach and other organs

abdominal adjective us uk /æbˈdɒmɪnəl/

to do with the abdomen:

abdominal pains

(Definition of “abdomen” from the Cambridge Learner’s Dictionary © Cambridge University Press)