Home › Words › H › heliographyheliographyheliography means the scientific study of the sun.EtymologyFrom helio- + -graphy.nounThe scientific study of the sun.The art of making a heliograph.The system of signalling by heliograph.Photography.Definitions & examples from Wiktionary (CC BY-SA 3.0).Words closest in meaningBy meaning, not spelling — each word's AI semantic fingerprint, nearest first.heliographical 78% match — Relating to heliography. vs heliography →heliographically 74% match — By means of heliography. vs heliography →heliology 72% match — heliophysics vs heliography →photoheliograph 68% match — A heliograph, with a camera attached, used to photograph the Sun. vs heliography →photoheliographic 67% match — of or pertaining to photoheliography or to a photoheliograph vs heliography →helioscopic 67% match — Of or relating to the helioscope. vs heliography →spectroheliography 66% match — The use of a spectroheliograph. vs heliography →heliobiology 66% match — The (study of the) effect of solar activity on life (both animal and plant) vs heliography →