Crustal
Pronunciation : Crust"al (krst"al)
Part of Speech : a.
Definition : Defn: Relating to a crust.
Source : Webster's Unabridged Dictionary, 1913
Merriam-Webster's Everyday Language Reference Set: Includes: The Merriam-Webster Dictionary, The Merriam-Webster Thesaurus, and The Merriam-Webster Vocabulary Builder