photoheliograph: Meaning and Definition of
pho•to•he•li•o•graph
Pronunciation: (fō"tu-hē'lē-u-graf", -gräf"), [key]
— n. Astron.
- an instrument for photographing the sun, consisting of a camera and a specially adapted telescope. Also called
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.