Meaning of ceilometer


Pronunciation: (sē-lom'i-tur, si-), [key]
— n.
  1. an automatic device for measuring and recording the height of clouds by projecting a modulated beam of light onto a cloud base, receiving the reflection of light through a photoelectric apparatus, and computing the height by triangulation.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.