Meaning of cyclogenesis

cy•clo•gen•e•sis

Pronunciation: (sī"klu-jen'u-sis, sik"lu-), [key]
— n. Meteorol.
  1. the intensification or development of a cyclone. Cf. cyclolysis.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.