Definition of ab
: an abdominal muscle
—usually used in plural
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First Known Use of ab
1956
noun
\
ˈäb
,
ˈäv
,
ˈȯv
\
Definition of Ab
: the 11th month of the civil year or the 5th month of the ecclesiastical year in the Jewish calendar — see Months of the Principal Calendars Table
Origin and Etymology of ab
Hebrew Ābh
NEW! Time Traveler
First Known Use: circa 1771
in the meaning defined above
See Words from the same yearDefinition of AB
: the one of the four ABO blood groups characterized by the presence of antigens designated by the letters A and B and by the absence of antibodies against these antigens
First Known Use of ab
1927
Definition of AB
1
able seaman; able-bodied seaman
2
airborne
3
airman basic
4
Alberta
5
[New Latin artium baccalaureus]
bachelor of arts Origin and Etymology of ab-
Middle English, from Anglo-French & Latin; Anglo-French, from Latin ab-, abs-, a-, from ab, a — more at of
AB Defined for English Language Learners
Definition of ab for English Language Learners
-
: any one of the muscles that cover a person's stomach : an abdominal muscle
AB Defined for Kids
Medical Dictionary
noun
\
ˈā-ˈbē
\
medical Definition of AB
: the one of the four ABO blood groups characterized by the presence of antigens designated by the letters A and B and by the absence of antibodies against these antigens
AB
medical Definition of AB
1
aid to blind
2
[Latin artium baccalaureus]
bachelor of arts Learn More about ab
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