[verb rey-dee-eyt; adjective rey-dee-it, -eyt] /verb ˈreɪ diˌeɪt; adjective ˈreɪ di ɪt, -ˌeɪt/
verb (used without object), radiated, radiating.
to extend, spread, or move like rays or radii from a center.
to emit rays, as of light or heat; irradiate.
to issue or proceed in rays.
(of persons) to project or glow with cheerfulness, joy, etc.:
She simply radiates with good humor.
verb (used with object), radiated, radiating.
to emit in rays; disseminate, as from a center.
(of persons) to project (joy, goodwill, etc.).
radiating from a center.
having rays extending from a central point or part:
a coin showing a radiate head.
Also eradiate. to emit (heat, light, or some other form of radiation) or (of heat, light, etc) to be emitted as radiation
(intransitive) (of lines, beams, etc) to spread out from a centre or be arranged in a radial pattern
(transitive) (of a person) to show (happiness, health, etc) to a great degree
adjective (ˈreɪdɪɪt; -ˌeɪt)
having rays; radiating
(of a capitulum) consisting of ray florets
(of animals or their parts) showing radial symmetry
adorned or decorated with rays: a radiate head on a coin
1610s, “spread in all directions from a point,” from Latin radiatus, past participle of radiare “to beam, shine, gleam; make beaming” (see radiation). Meaning “be radiant, give off rays (of light or heat)” is from 1704. Related: Radiated; radiates; radiating.
“having rays, furnished with rays, shining,” 1660s, from Latin radiatus (see radiate (v.)).
radiate ra·di·ate (rā’dē-āt’)
v. ra·di·at·ed, ra·di·at·ing, ra·di·ates
noun 1. the cooling of the earth’s surface and adjacent air, primarily at night, caused by a loss of heat due to surface emission of infrared radiation. radiational cooling (rā’dē-ā’shə-nəl) The cooling of the Earth’s surface and the air near the surface, occurring chiefly at night. It is caused by the emission of infrared radiation […]
noun, Physics. 1. . noun 1. a region in the magnetosphere of a planet in which charged particles are trapped by the planet’s magnetic field, an example being the earth’s Van Allen belts noun a region around a planet where charged particles accumulate due to the planet’s magnetic field Usage Note astronomy
- Radiation biology
radiation biology n. The study of the biological effects of ionizing radiation on living systems.
- Radiation damage
The damage caused by the removal of atoms from a solid material when elementary particles, such as those associated with cosmic rays or radioactivity, collide with it. Note: Radiation damage is an important consideration in the design of nuclear reactors, where radiation levels are high. Note: Radiation damage is one of the devastating effects of […]