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Pertaining to, or produced by, heliochromy.

The art of producing photographs in color.

A message transmitted by a heliograph.

A picture taken by heliography; a photograph.

Of or pertaining to heliography or a heliograph; made by heliography. Heliographic chart. See under Chart.

Photography. R. Hunt.

The process of photographic engraving.

A worshiper of the sun.

Sun worship. See Sabianism.

A fossil coral of the genus Heliolites, having twelve-rayed cells. It is found in the Silurian rocks.

An instrument devised originally for measuring the diameter of the sun; now employed for delicate measurements of the distance and relative direction of two stars too far apart to be easily measured in the field of view of an ordinary telescope.

Of or pertaining to the heliometer, or to heliometry.

The apart or practice of measuring the diameters of heavenly bodies, their relative distances, etc. See Heliometer.

An East Indian stony coral now known to belong to the Alcyonaria; -- called also blue coral.

A telescope or instrument for viewing the sun without injury to the eyes, as through colored glasses, or with mirrors which reflect but a small portion of light. -- He`li*o*scop`ic, a.

h a sunbeam is made apparently stationary, by being steadily directed to one spot during the whole of its diurnal period; also, a geodetic heliotrope.

An instrument or machine for showing when the sun arrived at the tropics and equinoctial line.

The person at a geodetic station who has charge of the heliotrope.

Manifesting heliotropism; turning toward the sun.

The phenomenon of turning toward the light, seen in many leaves and flowers.