= polygraphic, adj. (in various senses).

pertaining to steganography.

Of or relating to cryptography; written in code or cipher.

Of the nature of a cryptograph; written in code or cipher.

Of or relating to cryptography; written in code or cipher; cryptographical.

Of or relating to cryptology (cryptology, n. 2); written in code or cipher; = cryptographical, adj.

Involving or relating to a group of two or more letters; (Cryptography) designating a code in which the letters of the plain text are enciphered…

Of or relating to cryptology; cryptological. Cf. cryptographic, adj.