Definition of crypto-dynamic in English:

crypto-dynamic

adjective

  • Mechanics. Designating an enclosed two-speed epicyclic gear originally designed for use on bicycles. Compare "crypto". Now historical and rare.

Origin

Early 19th century (in an earlier sense). From crypto- + dynamic.

Pronunciation

crypto-dynamic

/ˌkrɪptəʊdʌɪˈnamɪk/