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 (äb, äv, ôv)
Variant of Av.

AB 1

One of the four major blood groups in the ABO system. Individuals with this blood group have both A and B antigens on the surface of their red blood cells, and no antibodies for A and B in their blood serum.

AB 2

a. able-bodied seaman
b. able seaman
2. airman basic
3. Alberta
4. Latin Artium Baccalaureus (Bachelor of Arts)


n. Slang
An abdominal muscle: Sit-ups help strengthen the abs.


(Judaism) a variant of Av


abbreviation for
1. (Nautical Terms) Also: a.b. able-bodied seaman
2. (Education) (in the US) Bachelor of Arts
3. (Placename) (esp in postal addresses) Alberta (Canada)
symbol for
(Biochemistry) a human blood type of the ABO group, containing both the A antigen and the B antigen


(ɑb, ɑv)



1. airborne.
2. Airman Basic.
3. Alberta.


a major blood group. Compare ABO system.


a prefix occurring in verbs or verbal derivatives borrowed from Latin, where it meant “off, away”: abhor; abjure; abrade. Compare a- 4, abs-.
[< Latin, prefixal use of ab from, away; see of1]




1. able-bodied seaman.
2. Bachelor of Arts.
[< New Latin, Medieval Latin Artium Baccalaureus]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.Ab - a bachelor's degree in arts and sciencesAB - a bachelor's degree in arts and sciences
bachelor's degree, baccalaureate - an academic degree conferred on someone who has successfully completed undergraduate studies
2.Ab - the eleventh month of the civil yearAb - the eleventh month of the civil year; the fifth month of the ecclesiastical year in the Jewish calendar (in July and August)
Hebrew calendar, Jewish calendar - (Judaism) the calendar used by the Jews; dates from 3761 BC (the assumed date of the Creation of the world); a lunar year of 354 days is adjusted to the solar year by periodic leap years
Jewish calendar month - a month in the Jewish calendar
3.Ab - the muscles of the abdomenab - the muscles of the abdomen    
skeletal muscle, striated muscle - a muscle that is connected at either or both ends to a bone and so move parts of the skeleton; a muscle that is characterized by transverse stripes
abdomen, belly, stomach, venter - the region of the body of a vertebrate between the thorax and the pelvis
abdominal external oblique muscle, external oblique muscle, musculus obliquus externus abdominis, oblique - a diagonally arranged abdominal muscle on either side of the torso
musculus transversalis abdominis, transverse muscle of abdomen, transversus abdominis, transversus abdominis muscle - a flat muscle with transverse fibers that forms the anterior and lateral walls of the abdominal cavity
4.Ab - the blood group whose red cells carry both the A and B antigensAB - the blood group whose red cells carry both the A and B antigens
blood group, blood type - human blood cells (usually just the red blood cells) that have the same antigens


1. (Naut) =able(-bodied) seaman
2. (US) (Univ) =Bachelor of ArtsLic. en Fil. y Let.
3. (Canada) =Alberta
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