a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison.

a fool or simpleton; ninny.

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Symbol, Chemistry.

columbium.

Bachelor of Surgery. Origin:
< Latin Chīrurgiae Baccalaureus

British. Companion of the Bath.

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World English Dictionary

cb

—*abbreviation for*
	centre of buoyancy (of a boat, etc)

Cb

—*the chemical symbol for*
	columbium

CB

—*abbreviation for*
1.	Citizens' Band
2.	Companion of the (Order of the) Bath (an English title)
3.	County Borough
4.	(in Canada) Cape Breton Island

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Etymonline

Word Origin & History

abbreviation of citizens' band (radio), 1959.

Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage

Medical Dictionary

CB (sē-bē')
n.
A bipolar lead of an electrocardiograph that has electrodes attached to the chest and back.

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