A*cerb"i*ty (#), n. [F. acerbit'e, L. acerbitas, fr. acerbus. See Acerb.]

1.

Sourness of taste, with bitterness and astringency, like that of unripe fruit.

2.

Harshness, bitterness, or severity; as, acerbity of temper, of language, of pain.

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© Webster 1913.