Energy that is radiated or transmitted in the form of rays or waves or particles.

Roget 291: divergence, divergency^†; divarication, ramification, forking; radiation; separation etc. (disjunction) 44; dispersion etc. 73; deviation etc. 279; aberration.    ... show more

Dutch: straling
Polish: promieniowanie, radiacja

The act of spreading outward from a central source.

Dutch: eradiatie, irradiatie, uitstraling

Syndrome resulting from exposure to ionizing radiation (e.g., exposure to radioactive chemicals or to nuclear explosions); low doses cause diarrhea and nausea and vomiting and sometimes loss of hair; greater exposure can cause sterility and cataracts and some forms of cancer and other diseases; severe exposure can cause death within hours:
— He was suffering from radiation.

synonyms: radiation sickness, radiation syndrome.

Dutch: stralingsziekte
Polish: choroba popromienna, choroba promienna

The spontaneous emission of a stream of particles or electromagnetic rays in nuclear decay.

synonym: radioactivity.

Roget 384: increase of temperature; heating etc. v.; calefaction^†, tepefaction^†, torrefaction^†; melting, fusion; liquefaction etc. 335; burning etc. v.; ambustion^†, combustion; incension^†, accension^†; concremation^†, cremation; scorification^†; cautery, cauterization; ustulation^†, calcination; cracking, refining; incineration, cineration^†; carbonization; cupellation [Chem].    ignition, inflammation, adustion^†, flagration^†; deflagration, conflagration; empyrosis^†, incendiarism; arson; auto dafe [Fr.].    boiling etc. v.; coction^†, ebullition, estuation^†, elixation^†, decoction; ebullioscope^†; geyser; distillation (vaporization) 336.    furnace etc. 386; blanket, flannel, fur; wadding etc. (lining) 224; clothing etc. 225.    still; refinery; fractionating column, fractionating tower, cracking tower.    match etc. (fuel) 388; incendiary; petroleuse [Fr.]; [biological effects resembling the effects of heat] [substances causing a burning sensation and damage on skin or tissue] cauterizer^†; caustic, lunar caustic, alkali, apozem^†, moxa^†; acid, aqua fortis [Lat.], aqua regia; catheretic^†, nitric acid, nitrochloro-hydric acid, nitromuriatic acid; radioactivity, gamma rays, alpha particles, beta rays, X-rays, radiation, cosmic radiation, background radiation, radioactive isotopes, tritium, uranium, plutonium, radon, radium.    sunstroke, coup de soleil [Fr.]; insolation.    [artifacts requiring heat in their manufacture] pottery, ceramics, crockery, porcelain, china; earthenware, stoneware; pot, mug, terra cotta [Sp.], brick, clinker.    [products of combustion] cinder, ash, scoriae, embers, soot; slag.    [products of heating organic materials] coke, carbon, charcoal; wood alcohol, turpentine, tea tree oil; gasoline, kerosene, naptha, fuel oil (fuel) 388; wax, paraffin; residue, tar.    inflammability, combustibility.    [Transmission of heat] diathermancy^†, transcalency^†, conduction; convection; radiation, radiant heat; heat conductivity, conductivity.    [effects of heat 2] thermal expansion; coefficient of expansion.    ... show more

Dutch: radioactiviteit
Polish: promieniotwórczość, radioaktywność

The spread of a group of organisms into new habitats.

A radial arrangement of nerve fibers connecting different parts of the brain.

medicine The treatment of disease (especially cancer) by exposure to a radioactive substance.

synonyms: actinotherapy, irradiation, radiation therapy, radiotherapy.

Roget 420: light, ray, beam, stream, gleam, streak, pencil; sunbeam, moonbeam; aurora.    day; sunshine; light of day, light of heaven; moonlight, starlight, sunlight etc. (luminary) 432; daylight, broad daylight, noontide light; noontide, noonday, noonday sun.    glow etc. v.; glimmering etc. v.; glint; play of light, flood of light; phosphorescence, lambent flame.    flush, halo, glory, nimbus, aureola.    spark, scintilla; facula; sparkling etc. v.; emication^†, scintillation, flash, blaze, coruscation, fulguration^†; flame etc. (fire) 382; lightning, levin^†, ignis fatuus [Lat.], etc. (luminary) 423.    luster, sheen, shimmer, reflexion [Brit.], reflection; gloss, tinsel, spangle, brightness, brilliancy, splendor; effulgence, refulgence; fulgor^†, fulgidity^†; dazzlement^†, resplendence, transplendency^†; luminousness etc. adj.; luminosity; lucidity; renitency^†, nitency^†; radiance, radiation; irradiation, illumination.    actinic rays, actinism; Roentgen-ray, Xray; photography, heliography; photometer etc. 445.    [Science of light] optics; photology^†, photometry; dioptrics^†, catoptrics^†.    [Distribution of light] chiaroscuro, clairobscur^†, clear obscure, breadth, light and shade, black and white, tonality.    reflection, refraction, dispersion; refractivity.    ... show more

Dutch: bestraling, irradiatie, radiotherapie
Polish: napromienienie, napromieniowanie