a combining form meaning “hidden,” “secret,” used in the formation of compound words:
secret, hidden, or concealed: cryptography, crypto-fascist
before vowels crypt-, word-forming element meaning “secret” or “hidden,” used in forming English words since at least 1760, from Latinized form of Greek kryptos “hidden, concealed, secret” (see crypt; the Greek comb. form was krypho-). Crypto-fascist is attested from 1937; crypto-communist from 1946.
crypto- or crypt-
[krip-toh-uh-nal-uh-sis] /ˌkrɪp toʊ əˈnæl ə sɪs/ noun 1. .
/ˌkrɪptəʊˈbaɪɒnt/ noun 1. any organism that exhibits cryptobiosis
/ˌkrɪptəʊbaɪˈəʊsɪs/ noun 1. (zoology) a temporary state in an organism in which metabolic activity is absent or undetectable
[krip-tuh-klas-tik] /ˌkrɪp təˈklæs tɪk/ adjective, Geology. 1. (of rock) composed of minute or microscopic fragments. /ˌkrɪptəʊˈklæstɪk/ adjective 1. (of minerals and rocks) composed of microscopic fragments