radiant
/ˈɹeɪ.di.ənt/ adjective, noun
Forms radiants radient
- adjective Radiating light and/or heat. “the radiant sun”
- adjective Emitted as radiation.
- adjective (figurative) Beaming with vivacity and happiness. “a radiant face”
- adjective (figurative) Strikingly beautiful.
- adjective Emitting or proceeding as if from a center.
- adjective (heraldry, of a bearing) Giving off rays. “the sun radiant”
- adjective (botany) Having a ray-like appearance, like the large marginal flowers of certain umbelliferous plants; said also of the cluster which has such marginal flowers.
- noun A point source from which radiation is emitted.
- noun (astronomy) The apparent origin, in the night sky, of a meteor shower.
- noun (geometry) A straight line proceeding from a given point, or fixed pole, about which it is conceived to revolve.
Synonyms
Etymology
From Middle English radyant, from Latin radiāns, radiantis, present participle of radiāre (“to emit rays or beams”).
Webster’s 1913
- adjective Emitting or proceeding as from a center; [U.S.] rays; radiating; radiate.
- adjective Especially, emitting or darting rays of light or heat; issuing in beams or rays; beaming with brightness; emitting a vivid light or splendor; as, the radiant sun. Mark what radiant state she spreads. Milton.
- noun The luminous point or object from which light emanates; also, a body radiating light brightly.
- noun A straight line proceeding from a given point, or fixed pole, about which it is conceived to revolve.
Etymology [L. radians, -antis, p. pr. of radiare to emit rays or beams, fr. radius ray: cf. F. radiant. See Radius, Ray a divergent line.]
Sources: Wiktionary · WordNet 3.0 · Webster’s 1913 — from the Wiktionary entry “radiant”, CC BY-SA 4.0. Details