Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun A piece of thin crisp toast.
  • noun An hors d'oeuvre made with a crostino and any of various toppings.

Etymologies

from The American Heritage® Dictionary of the English Language, 4th Edition

[Italian, diminutive of crosta, crust, from Latin crusta; see kreus- in Indo-European roots.]

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