a telescopic device for reflecting the light of a star in a constant direction, the chief component of which is a plane mirror turned by a clock mechanism to correct for the rotation of the earth.
an astronomical instrument consisting essentially of a plane mirror driven about two axes so that light from a celestial body, esp the sun, is reflected along a constant direction for a long period of time See also heliostat Compare coelostat
noun, Pathology. 1. a disease of the lungs caused by inhaling iron or other metallic particles. noun 1. a lung disease caused by breathing in fine particles of iron or other metallic dust 2. an excessive amount of iron in the blood or tissues siderotic sid·er·ot·ic (sĭd’ə-rŏt’ĭk) n. Pigmented by iron. Containing an excess of […]
- Siderotic nodules
siderotic nodules n. See Gamna-Gandy bodies.
noun 1. a saddle for women on which the rider sits, facing forward, usually with both feet on the left side of the horse. adverb 2. seated on a sidesaddle: The girl hunted sidesaddle.
noun 1. a saddle for women on which the rider sits, facing forward, usually with both feet on the left side of the horse. adverb 2. seated on a sidesaddle: The girl hunted sidesaddle. noun 1. a riding saddle originally designed for women riders in skirts who sit with both legs on the near side […]