Meaning of chronotherapy

chron•o•ther•a•py

Pronunciation: (kron"u-ther'u-pē, krō"nu-), [key]
— n. Med.
  1. a treatment for insomnia in which a person's normal cycle of waking and sleeping is altered.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.