in•crustPronunciation: (in-krust'), [key]
to cover or line with a crust or hard coating.
to form into a crust.
to deposit as a crust.
to form a crust: They scraped off the barnacles that always incrusted on the ship's hull. Also,encrust.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.