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Webster 1913 Edition

(kr?p′t?-d?n; 104)

Noun.

[Gr.

κρυπτόσ

hidden.]

(Chem.)

One of the quinoline bases, obtained from coal tar as an oily liquid,

C11H11N

; also, any one of several substances metameric with, and resembling, cryptidine proper.

cryptidine ‎(uncountable)

(chemistry) One of the quinoline bases, obtained from coal tar as an oily liquid, C₁₁H₁₁N.
Any of several substances metameric with, and resembling, cryptidine proper.