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carb

1
[ kahrb ]
/ kɑrb /
Informal.
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noun
verb (used without object)
to eat large quantities of carbohydrates before a major physical exertion in order to store up energy (usually followed by up): Some marathon runners carb up on spaghetti the night before a race.
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Origin of carb

1
By shortening of carbohydrate

Other definitions for carb (2 of 3)

carb2
[ kahrb ]
/ kɑrb /

noun Informal.

Origin of carb

2
First recorded in 1950–55; by shortening

Other definitions for carb (3 of 3)

carb-

variant of carbo- before a vowel: carbazole.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

WORDS THAT USE CARB-

What does carb- mean?

The combining form carbo- is used like a prefix meaning “carbon.” It is often used in scientific terms, especially in chemistry.

The form carbo- ultimately comes from Latin carbō, meaning “charcoal.” Yes, charcoal. The dishes carbonara and carbonade are also related to the Latin carbō.

The Greek translation of Latin carbō is ánthrax, “charcoal” or “carbuncle,” which is the source of the word anthrax. Find out more at our entry for the word.

What are variants of carb-?

The form carb- is a variant of carbo-, which loses its -o- when combined with words or word elements beginning with vowels. Want to know more? Read our Words That Use article for carbo-.

Examples of -carb

One example of a scientific term that features carb- is carbide, “a compound of carbon with a more electropositive element or group.”

The form carb- means “carbon,” and the -ide portion of the word is a suffix used to name chemical compounds. Carbide literally means “carbon compound.”

What are some words that use the combining form carb-?

What are some other forms that carb– may be commonly confused with?

Not every word that begins with the exact letters carb-, such as carbeen and carbine, is necessarily using the combining form carb- to denote “carbon.” Learn why carbine means “rifle” at our entry for the word.

Break it down!

The suffix -ene is used to form names of chemical compounds. With that in mind, what is carbene?

How to use carb in a sentence

British Dictionary definitions for carb

carb
/ (kɑːb) /

noun
short for carburettor
short for carbohydrate
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 carb

carb-

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