FAQs About the word photoheliometer

photohéliomètre

A double-lens instrument for measuring slight variations of the sun's diameter by photography, utilizing the common chord of two overlapping images.

No synonyms found.

No antonyms found.

photoheliograph => Photohéliographe, photogravure => Photogravure, photography => Photographie, photographone => Photographone, photographometer => Photomètre,