\ ˈab How to pronounce ab (audio) \

Definition of ab

 (Entry 1 of 6)

: an abdominal muscle usually used in plural

Definition of ab (Entry 2 of 6)

about
\ ˈäb How to pronounce Ab (audio) , ˈäv How to pronounce Ab (audio) , ˈȯv How to pronounce Ab (audio) \

Definition of Ab (Entry 3 of 6)

: 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
\ ˈā-ˈbē How to pronounce AB (audio) \

Definition of AB (Entry 4 of 6)

: 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

Definition of AB (Entry 5 of 6)

1 able seaman; able-bodied seaman
2 abort; abortion
3 airborne
4 airman basic
5 Alberta
6 [New Latin artium baccalaureus] bachelor of arts

ab-

prefix

Definition of ab- (Entry 6 of 6)

: from : away : off abaxial

First Known Use of ab

Noun (1)

1956, in the meaning defined above

Noun (2)

circa 1771, in the meaning defined above

Noun (3)

1927, in the meaning defined above

History and Etymology for ab

Noun (2)

Hebrew Ābh

Prefix

Middle English, from Anglo-French & Latin; Anglo-French, from Latin ab-, abs-, a-, from ab, a — more at of

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Cite this Entry

“Ab.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ab. Accessed 13 Aug. 2022.

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More Definitions for ab

ab-

prefix

Kids Definition of ab-

: from : differing from abnormal

AB

abbreviation

Kids Definition of AB

Alberta

ab

noun
\ ˈab How to pronounce ab (audio) \

Medical Definition of ab

 (Entry 1 of 4)

: abdominal usually used in plural highly developed abs ab exercises

ab

abbreviation

Medical Definition of ab (Entry 2 of 4)

1 or AB abort; abortion
2 about

AB

noun
\ ˈā-ˈbē How to pronounce AB (audio) \

Medical Definition of AB (Entry 3 of 4)

: 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

abbreviation

Medical Definition of AB (Entry 4 of 4)

1 aid to blind
2 [Latin artium baccalaureus] bachelor of arts

More from Merriam-Webster on ab

Nglish: Translation of ab for Spanish Speakers

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