Ab Definition

ăb
noun
The eleventh month of the Jewish year.
Webster's New World
A blood type.
Webster's New World
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.
American Heritage Medicine
An abdominal muscle.
Sit-ups help strengthen the abs.
American Heritage Medicine
Synonyms:
abbreviation
Able-bodied seaman.
American Heritage
Airman basic.
Webster's New World
Able seaman.
American Heritage
Alberta (Canada)
Webster's New World
(times) At bat.
Webster's New World
prefix
Away from.
Aboral.
American Heritage
Used to indicate an electromagnetic unit in the centimeter-gram-second system.
Abcoulomb.
American Heritage
adjective
Of or having to do with the abdominal muscles.
A tough ab workout.
Webster's New World
affix
Away, from, from off, down.
Abdicate.
Webster's New World
symbol

(metrology) Symbol for the attobel, an SI unit of sound intensity equal to 10−18 bels.

Wiktionary
suffix

Antibody.

Wiktionary

Other Word Forms of Ab

Noun

Singular:
ab
Plural:
ABS

Origin of Ab

  • Latin apo- in Indo-European roots

    From American Heritage Dictionary of the English Language, 5th Edition

  • From absolute

    From American Heritage Dictionary of the English Language, 5th Edition

  • L

    From Webster's New World College Dictionary, 5th Edition

Ab Sentence Examples

  • A young senator (ab actis senatus) was chosen to draw up these Acta, which were kept in the imperial archives and public libraries.

  • In nonflowering plants the works usually followed are for ferns, Hooker and Baker's Synopsis filicum; for mosses, Muller's Synopsis muscorum frondosorum, Jaeger & Sauerbeck's Genera et species muscorum, and Engler & Prantl's Pflanzenfamilien; for algae, de Toni's Sylloge algarum; for hepaticae, Gottsche, Lindenberg and Nees ab Esenbeck's Synopsis hepaticarum, supplemented by Stephani's Species hepaticarum; for fungi, Saccardo's Sylloge fungorum, and for mycetozoa Lister's monograph of the group. For the members of large genera, e.g.

  • To explain this result, chemists suppose that both changes can occur simultaneously, and that equilibrium results when the rate at which AB and CD are transformed into AD and CB is the same as the rate at which the reverse change goes on.

  • Thus, if the molecule of a substance in solution is represented by AB, Grotthus considered a chain of AB molecules to exist from one electrode to the other.

  • Let the distance of each pole of the rod AB from the centre of the magnetometer needle = d.

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