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Ab

[ahb, ahv] /ɑb, ɑv/
noun
1.
Av.

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.

Ab

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

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

ab.

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

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.

abs

[abz] /æbz/
plural noun, Informal.
1.
abdominal muscles.
Origin
1980-85, Americanism; by shortening
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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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

Av

/æv/
noun
1.
(in the Jewish calendar) the fifth month of the year according to biblical reckoning and the eleventh month in the civil year, usually falling within July and August
Word Origin
from Hebrew

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

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
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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Related Abbreviations for Ab

ab

Abkhazian

Ab

antibody

AB

  1. able-bodied [seaman]
  2. about (shortwave transmission)
  3. airbase
  4. airman basic
  5. Alberta
  6. Latin Artium Baccalaureus (Bachelor of Arts)
  7. at bats (baseball)

ab.

  1. about
  2. abbreviation

abs

  1. abdominal muscles
  2. absolute temperature

ABS

  1. American Board of Surgery
  2. Animal Behavior Society
  3. antilock braking system
The American Heritage® Abbreviations Dictionary, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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