the.com/carb

means Short for carbohydrate — the sugar, starch, or fiber molecule that's your body's go-to fuel source, found in everything from bread to broccoli.

from A clipped form of 'carbohydrate,' itself built from chemistry: 'carbo-' pointing to carbon, plus 'hydrate,' meaning combined with water — because these molecules are literally made of carbon atoms bonded with water molecules (hence sugars like glucose, C6H12O6). The full scientific term dates to 19th-century chemistry; the snappy 'carb' is a much newer shorthand, popularized as dieting became a national pastime and nobody had time to say five syllables before admitting they'd eaten a bagel.