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definitions

photoheliograph

[ foh-tuh-hee-lee-uh-graf, -grahf ]
/ ˌfoʊ təˈhi li əˌgræf, -ˌgrɑf /

noun Astronomy.

an instrument for photographing the sun, consisting of a camera and a specially adapted telescope.

Nearby words

  1. photograph,
  2. photographer,
  3. photographic,
  4. photography,
  5. photogravure,
  6. photoinactivation,
  7. photoinduced,
  8. photoinduction,
  9. photoionization,
  10. photoisomerization

Origin of photoheliograph

First recorded in 1860–65; photo- + heliograph
Also called heliograph.
Related formspho·to·he·li·o·graph·ic [foh-tuh-hee-lee-uh-graf-ik] /ˌfoʊ təˌhi li əˈgræf ɪk/, adjectivepho·to·he·li·og·ra·phy [foh-tuh-hee-lee-og-ruh-fee] /ˌfoʊ təˌhi liˈɒg rə fi/, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019