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carbohydrate

noun

  1. organic compound that consists only of carbon, hydrogen, and oxygen
L30386 on Wikidata ↗

Wiktionary

Pronunciation: /kɑːbəʊˈhaɪdɹeɪt/ / /kɑɹboʊˈhaɪdɹeɪt/ / /kɑɹbəˈhaɪdɹeɪt/

noun

Etymology: From their general formula Cₙ(H₂O)ₙ; they were once thought to be hydrates of carbon.

  1. A sugar, starch, or cellulose that is a food source of energy for an animal or plant.

    These microbes are primarily responsible for breaking down cellulose and other carbohydrates into volatile fatty acids (VFAs).

    Oxygen levels on Earth skyrocketed 2.4 billion years ago, when cyanobacteria evolved photosynthesis: the ability to convert water and carbon dioxide into carbohydrates and waste oxygen using solar energy.

  2. Any food rich in starch or other carbohydrates.

    I'm cutting down on carbohydrates like bread and pasta.