Definitions

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

  • adj. Of or relating to a crust, especially that of the earth or the moon.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • adj. Of, pertaining to, or forming a crust, especially the crust of the Earth or other planet etc.

from the GNU version of the Collaborative International Dictionary of English

  • adj. Relating to a crust.

from The Century Dictionary and Cyclopedia

  • Of, pertaining to, or of the nature of crust; crustaceous.
  • Of or pertaining to a crustal.
  • n. One of the superficial particles of any given order which collectively form the crust of a particle of another order; a term used by the translator of Swedenborg's “Principles of Natural Philosophy.”

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • adj. of or relating to or characteristic of the crust of the earth or moon

Etymologies

From crust +‎ -al. (Wiktionary)

Examples

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