Reflection-nebula
noun, Astronomy.
1.
a cloud of interstellar gas and dust that reflects the light of neighboring stars.
reflection nebula
A nebula that reflects the light of a nearby star or stars toward Earth rather than producing its own. See more at nebula.
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noun, Crystallography. 1. a plane through a crystal that divides the crystal into two halves that are mirror images of each other.
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adjective 1. that reflects; reflecting. 2. of or relating to reflection. 3. cast by reflection. 4. given to, marked by, or concerned with meditation or deliberation: a reflective person. adjective 1. characterized by quiet thought or contemplation 2. capable of reflecting: a reflective surface 3. produced by reflection reflective re·flec·tive (rĭ-flěk’tĭv) adj. Of, relating to, […]
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adjective 1. that reflects; reflecting. 2. of or relating to reflection. 3. cast by reflection. 4. given to, marked by, or concerned with meditation or deliberation: a reflective person. adjective 1. characterized by quiet thought or contemplation 2. capable of reflecting: a reflective surface 3. produced by reflection reflective re·flec·tive (rĭ-flěk’tĭv) adj. Of, relating to, […]
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adjective 1. that reflects; reflecting. 2. of or relating to reflection. 3. cast by reflection. 4. given to, marked by, or concerned with meditation or deliberation: a reflective person. reflectivity /ˌriːflɛkˈtɪvɪtɪ/ noun 1. (physics) a measure of the ability of a surface to reflect radiation, equal to the reflectance of a layer of material sufficiently […]
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[ree-flek-tom-i-ter, ri-] /ˌri flɛkˈtɒm ɪ tər, rɪ-/ noun, Optics. 1. a device for measuring reflectance. reflectometer /ˌriːflɛkˈtɒmɪtə/ noun 1. (physics) an instrument for measuring the ratio of the energy of a reflected wave to the incident wave in a system