radiants
plural of radiant
• anti-rads, antirads, intradas, itardans
Source: Wiktionary
Ra"di*ant, a. Etym: [L. radians, -antis, p. pr. of radiare to emit rays or beams, fr. radius ray: cf. F. radiant. See Radius, Ray a divergent line.]
1. Emitting or proceeding as from a center; [U.S.] rays; radiating; radiate.
2. 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.
3. Beaming with vivacity and happiness; as, a radiant face.
4. (Her.)
Definition: Giving off rays; -- said of a bearing; as, the sun radiant; a crown radiant.
5. (Bot.)
Definition: Having a raylike appearance, as the large marginal flowers of certain umbelliferous plants; -- said also of the cluster which has such marginal flowers. Radiant energy (Physics), energy given out or transmitted by radiation, as in the case of light and radiant heat.
– Radiant heat, proceeding in right lines, or directly from the heated body, after the manner of light, in distinction from heat conducted or carried by intervening media.
– Radiant point. (Astron.) See Radiant, n., 3.
Ra"di*ant, n.
1. (Opt.)
Definition: The luminous point or object from which light emanates; also, a body radiating light brightly.
2. (Geom.)
Definition: A straight line proceeding from a given point, or fixed pole, about which it is conceived to revolve.
3. (Astron.)
Definition: The point in the heavens at which the apparent paths of shooting stars meet, when traced backward, or whence they appear to radiate.
Source: Webster’s Unabridged Dictionary 1913 Edition
8 May 2025
(noun) the act of protecting something by surrounding it with material that reduces or prevents the transmission of sound or heat or electricity
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