1. a salt or ester of carbonic acid.

verb (used with object), car·bon·at·ed, car·bon·at·ing.

  1. to form into a carbonate.
  2. to charge or impregnate with carbon dioxide: carbonated drinks.
  3. to make sprightly; enliven.

noun (ˈkɑːbəˌneɪt, -nɪt)

  1. a salt or ester of carbonic acid. Carbonate salts contain the divalent ion CO 3 2–

verb (ˈkɑːbəˌneɪt)

  1. to form or turn into a carbonate
  2. (tr) to treat with carbon dioxide or carbonic acid, as in the manufacture of soft drinks

1805, “to form into a carbonate,” from carbonate (n.) by influence of French carbonater “transform into a carbonate.” Meaning “to impregnate with carbonic acid gas (i.e. carbon dioxide)” is from 1850s. Related: Carbonated; carbonating.


1794, from French carbonate “salt of carbonic acid” (Lavoisier), from Modern Latin carbonatem “a carbonated (substance),” from Latin carbo (see carbon).


  1. A salt or ester of carbonic acid.


  1. A salt or ester of carbonic acid, containing the group CO3. The reaction of carbonic acid with a metal results in a salt (such as sodium carbonate), and the reaction of carbonic acid with an organic compound results in an ester (such as diethyl carbonate).
  2. Any other compound containing the group CO3. Carbonates include minerals such as calcite and aragonite.
  3. Sediment or a sedimentary rock formed by the precipitation of organic or inorganic carbon from an aqueous solution of carbonates of calcium, magnesium, or iron. Limestone is a carbonate rock.


  1. To add carbon dioxide to a substance, such as a beverage.

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