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Ab

[ahb, ahv] /ɑb, ɑv/
noun
1.
Av.

Ab

Symbol.
1.
Chemistry. alabamine.
2.
Immunology. antibody.

AB

1.
Nautical. able seaman.
2.
3.
U.S. Air Force. Airman Basic.
4.
Alberta, Canada (approved for postal use).
5.
antiballistic; antiballistic missile.

AB

Symbol, Physiology.
1.
a major blood group usually enabling a person whose blood is of this type to donate blood to persons of type AB and to receive blood from persons of type O, A, B, or AB.
Compare ABO system.

abs

[abz] /æbz/
plural noun, Informal.
1.
abdominal muscles.
Origin of abs
1980-1985
An Americanism dating back to 1980-85; by shortening

ab.

1.
2.
Baseball. (times) at bat.

ab-

1.
a formal element occurring in loanwords from Latin, where it meant “away from”:
abdicate; abolition.
Also, a-, abs-.
Origin
< Latin ab (preposition and prefix) from, away, cognate with Greek apó, Sanskrit ápa, German ab, English of1, off

A.B.1

Origin
< New Latin, Medieval Latin Artium Baccalaureus

A.B.2

1.
Nautical. able seaman.
2.
Baseball. (times) at bat.
Also, a.b.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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Examples from the Web for Ab
Contemporary Examples
Historical Examples
  • A character mentioned in the MAbinogion, goes by the name of Gwyddneu Ab Llwydau.

    Y Gododin Aneurin
  • Arthwys son of Ceneu Ab Coel was too early for the battle of Cattraeth.

    Y Gododin Aneurin
  • SAbbataï had been born on the ninth of Ab—on the great Black Fast.

  • Ab, you are in as big a hurry to git thar as any of us,” said another.

    Rodney, the Ranger John V. Lane
  • Wal, sir, I've heerd yer from the North, and I'd like to know if yer an Ab'lishener.

    Among the Pines

    James R. Gilmore
British Dictionary definitions for Ab

Ab

/æb/
noun
1.
a variant of Av

AB

abbreviation
1.
Also a.b.. able-bodied seaman
2.
(in the US) Bachelor of Arts
3.
(esp in postal addresses) Alberta (Canada)
symbol
4.
a human blood type of the ABO group, containing both the A antigen and the B antigen

ab-1

prefix
1.
away from; off; outside of; opposite to: abnormal, abaxial, aboral
Word Origin
from Latin ab away from

ab-2

prefix
1.
denoting a cgs unit of measurement in the electromagnetic system: abvolt
Word Origin
abstracted from absolute

abs

/æbz/
plural noun
1.
(informal) abdominal muscles

ABS

abbreviation
1.
acrylonitrile-butadiene-styrene: any of a range of tough copolymers used esp for making moulded articles
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for Ab

ab-

word-forming element meaning "away, from, from off, down;" from Latin ab-, ab "off, away from," from PIE root *apo- (see apo-). Reduced to a- before -m-, -p-, or -v-; sometimes abs- before -c- or -t-.

abs

n.

colloquial shortening of abdominals, by 1992.

Online Etymology Dictionary, © 2010 Douglas Harper
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Ab in Medicine

Ab abbr.
antibody

ab- 2
pref.
Used to indicate an electromagnetic unit in the centimeter-gram-second system: abcoulomb.

ab- 1
pref.
Away from: abaxial.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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