from The American Heritage® Dictionary of the English Language, 4th Edition
- intransitive v. To send out rays or waves.
- intransitive v. To issue or emerge in rays or waves: Heat radiated from the stove.
- intransitive v. To extend in straight lines from or toward a center; diverge or converge like rays: Spokes radiate from a wheel hub.
- intransitive v. Ecology To spread into new habitats and thereby diverge or diversify. Used of a group of organisms.
- transitive v. To emit (light, for example) in or as if in rays.
- transitive v. To send or spread out from or as if from a center: a cactus that radiates spines.
- transitive v. To irradiate or illuminate (an object).
- transitive v. To manifest in a glowing manner: a leader who radiates confidence.
- adj. Botany Having rays or raylike parts, as in the flower heads of daisies.
- adj. Biology Characterized by radial symmetry.
- adj. Surrounded with rays: a radiate head on a coin.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- v. To extend, send or spread out from a center like radii.
- v. To emit rays or waves.
- v. To come out or proceed in rays or waves.
- v. To illuminate.
- v. To expose to ionizing radiation, such as by radiography.
- v. To manifest oneself in a glowing manner.
- v. to spread into new habitats, migrate.
- adj. radiating from a center.
- adj. surrounded by rays, such as the head of a saint in a religious picture.
- adj. having parts radiating from the center, such as the petals in many flowers.
- adj. having radial symmetry, such as a seastar.
- n. One of the Radiata.
from the GNU version of the Collaborative International Dictionary of English
- intransitive v. To emit rays; to be radiant; to shine.
- intransitive v. To proceed in direct lines from a point or surface; to issue in rays, as light or heat.
- transitive v. To emit or send out in direct lines from a point or points.
- transitive v. To enlighten; to illuminate; to shed light or brightness on; to irradiate.
- adj. Having rays or parts diverging from a center; radiated.
- adj. Having in a capitulum large ray florets which are unlike the disk florets, as in the aster, daisy, etc.
- adj. Belonging to the Radiata.
- n. One of the Radiata.
from The Century Dictionary and Cyclopedia
- To issue and proceed in rays or straight lines from a point; spread directly outward from a center or nucleus, as the spokes of a wheel, heat and light, etc.
- To emit rays; be radiant: as, a radiating body.
- To spread in all directions from a central source or cause; proceed outward as from a focus to all accessible points.
- To emit or send out in direct lines, as from a point or focus; hence, to cause to proceed or diverge in all directions, as from a source or cause; communicate by direct emanation: as, the sun radiates heat and light.
- To furnish with rays; cause to have or to consist of rays; make radial.
- Having a ray, rays, or ray-like parts; having lines or projections proceeding from a common center or surface; rayed: as, a radiate animal (a member of the Radiata); a radiate mineral (one with rayed crystals or fibers); a radiate flower-head.
- Constituting a ray or rays; proceeding or extending outward from a center or focus; radiating: as, the radiate fibers of some minerals and plants; the radiate petals of a flower or florets of a head.
- In numismatic and similar descriptions, represented with rays proceeding from it, as a head or bust: as, the head of the Emperor Caracalla, radiate; the head of Helios (the sun-god), radiate.
- n. A ray-like projection; a ray.
- n. A member of the Radiata, in any sense.
- To be directed, as rays, toward a common center: as, “spokes radiating to an axle.”
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- v. send out rays or waves
- v. issue or emerge in rays or waves
- v. extend or spread outward from a center or focus or inward towards a center
- v. spread into new habitats and produce variety or variegate
- v. cause to be seen by emitting light as if in rays
- adj. arranged like rays or radii; radiating from a common center
- v. send out real or metaphoric rays
- v. experience a feeling of well-being or happiness, as from good health or an intense emotion
- adj. having rays or ray-like parts as in the flower heads of daisies
- v. have a complexion with a strong bright color, such as red or pink
Latin radiāre, radiāt-, to emit beams, from radius, ray.(American Heritage® Dictionary of the English Language, Fourth Edition)
From Latin radiatus, past participle of radiare ("to radiate, furnish with spokes, give out rays, radiate, shine"), from radius ("a spoke, ray"). (Wiktionary)