Ab

1
[ ahb, ahv ]
/ ɑb, ɑv /

noun

Av.

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Definition for Ab (2 of 8)

Ab2

Symbol.

Chemistry. alabamine.
Immunology. antibody.

Definition for Ab (3 of 8)

AB1

abbreviation

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

Definition for Ab (4 of 8)

AB2

Symbol, Physiology.

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.

Definition for Ab (5 of 8)

ab-

a formal element occurring in loanwords from Latin, where it meant “away from”: abdicate; abolition.
Also a-, abs- .

Origin of ab-

<Latin ab (preposition and prefix) from, away, cognate with Greek apó,Sanskrit ápa,German ab, English of1, off

Definition for Ab (6 of 8)

ab.

about.
Baseball. (times) at bat.

Definition for Ab (7 of 8)

Origin of A.B.

1
<New Latin, Medieval Latin Artium Baccalaureus

Definition for Ab (8 of 8)

A.B.2

Nautical. able seaman.
Baseball. (times) at bat.Also a.b.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

British Dictionary definitions for Ab (1 of 4)

Ab
/ (æb) /

noun

a variant of Av

British Dictionary definitions for Ab (2 of 4)

AB

abbreviation for

Also: a.b. able-bodied seaman
(in the US) Bachelor of Arts
(esp in postal addresses) Alberta (Canada)

symbol for

a human blood type of the ABO group, containing both the A antigen and the B antigen

British Dictionary definitions for Ab (3 of 4)

ab-1

prefix

away from; off; outside of; opposite toabnormal; abaxial; aboral

Word Origin for ab-

from Latin ab away from

British Dictionary definitions for Ab (4 of 4)

ab-2

prefix

denoting a cgs unit of measurement in the electromagnetic systemabvolt

Word Origin for ab-

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

Medical definitions for Ab (1 of 3)

ab- 22

pref.

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

Medical definitions for Ab (2 of 3)

ab- 11

pref.

Away from:abaxial.

Medical definitions for Ab (3 of 3)

Ab

abbr.

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