资料来源 : Webster's Revised Unabridged Dictionary (1913)

Raucity \Rau"ci*ty\, n. [L. rausitas, from raucus hoarse: cf. F.
   raucit['e].]
   Harshness of sound; rough utterance; hoarseness; as, the
   raucity of a trumpet, or of the human voice.