a. [f. L. crypta (see prec.) + -AL.] Of, pertaining to, or of the nature of a crypt.

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1842.  Dunglison, Med. Lex., s.v. Crypta, The use of the cryptal or follicular secretion, is to keep the parts … supple and moist.

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1860.  All Year Round, No. 56. 139. He led me down to the second cryptal chamber.

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