b


abbreviation

Physics.
  1. bar; bars.
  2. barn; barns.

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Definition for b (2 of 7)

B1

or b

[ bee ]
/ bi /

noun, plural B's or Bs, b's or bs.

the second letter of the English alphabet, a consonant.
any spoken sound represented by the letter B or b, as in bid, bauble, or daubed.
something having the shape of a B.
a written or printed representation of the letter B or b.
a device, as a printer's type, for reproducing the letter B or b.

Definition for b (3 of 7)

B2

abbreviation

Chess. bishop.
Black1. Also b
Photography. bulb (def. 8).

Definition for b (4 of 7)

B3

Symbol.

Definition for b (5 of 7)

B-

U.S. Military.

(in designations of aircraft) bomber: B-29.

Definition for b (6 of 7)

b.

Definition for b (7 of 7)

B.

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

British Dictionary definitions for b (1 of 6)

b

B

/ (biː) /

noun plural b's, B's or Bs

the second letter and first consonant of the modern English alphabet
a speech sound represented by this letter, usually a voiced bilabial stop, as in bell
Also: beta the second in a series, esp the second highest grade in an examination

British Dictionary definitions for b (2 of 6)

b

symbol for

British Dictionary definitions for b (3 of 6)

B

symbol for

abbreviation for

Belgium (international car registration)

British Dictionary definitions for b (4 of 6)

B-

abbreviation for (of US military aircraft)

bomberB-52

British Dictionary definitions for b (5 of 6)

b.

abbreviation for

born
cricket bowled

British Dictionary definitions for b (6 of 6)

B.

abbreviation for

(on maps, etc) bay
British
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 b (1 of 2)

b

abbr.

blood (used as a subscript)

Medical definitions for b (2 of 2)

B

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

Scientific definitions for b

B

The symbol for boron.
The symbol for magnetic field.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.