night-blooming cereus: Meaning and Definition of

night'-bloom•ing ce'reus

Pronunciation: (nīt'bl"ming), [key]
  1. any of various cacti of the genera Hylocereus, Peniocereus, Nyctocereus, or Selenicereus, having large, usually white flowers that open at night.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.