different between radiate vs irradiant

English

Etymology

Borrowed from Latin radiatus, past participle of radiare (“to radiate, furnish with spokes, give out rays, radiate, shine”), from radius (“a spoke, ray”).

Pronunciation

• (verb) IPA^(key): /??e?die?t/
• (adjective) IPA^(key): /??e?die?t/, /??e?di.?t/

Verb

radiate (third-person singular simple present radiates, present participle radiating, simple past and past participle radiated)

1. To extend, send or spread out from a center like radii.
   • 1994, Great Britain. Parliament. House of Commons, Parliamentary Debates

     Oban is not a terminus; its routes radiate by sea, rail and road.
2. (transitive) To emit rays or waves.

   The stove radiates heat.

3. (intransitive) To come out or proceed in rays or waves.

   The heat radiates from a stove.

   • 1706, John Locke, Elements of Natural Philosophy

     Light radiates from luminous bodies directly to our eyes.
4. (transitive) To illuminate.
5. To expose to ionizing radiation, such as by radiography.
6. (transitive) To manifest oneself in a glowing manner.
7. (ecology, intransitive) to spread into new habitats, migrate.

Synonyms

• (to expose to radiation): irradiate

Derived terms

• radiator

Related terms

• radiation

Translations

Adjective

radiate (comparative more radiate, superlative most radiate)

1. Radiating from a center; having rays or parts diverging from a center; radiated.

   a radiate crystal

2. Surrounded by rays, such as the head of a saint in a religious picture.
3. (botany) Having parts radiating from the center, like the petals in many flowers.
4. (botany) Consisting of a disc in which the florets are tubular.
5. (biology) Having radial symmetry, like a seastar.
6. (zoology) Belonging to the Radiata.

Translations

Noun

radiate (plural radiates)

1. (zoology) One of the Radiata.

Related terms

• radial
• radiation
• radio
• radius
• ray

Further reading

• radiate in Webster’s Revised Unabridged Dictionary, G. & C. Merriam, 1913.
• radiate in The Century Dictionary, New York, N.Y.: The Century Co., 1911.
• radiate at OneLook Dictionary Search

Anagrams

• airdate, ardaite, tiaraed

Esperanto

Adverb

radiate

1. present adverbial passive participle of radii

Italian

Verb

radiate

1. second-person plural present subjunctive of radere
2. second-person plural present indicative of radiare
3. second-person plural imperative of radiare
4. second-person plural present subjunctive of radiare
5. feminine plural of radiato

Anagrams

• aderita, adirate, ardiate, datarie, daterai

Latin

Verb

radi?te

1. second-person plural present active imperative of radi?

English

Adjective

irradiant (comparative more irradiant, superlative most irradiant)

1. That radiates light

French

Verb

irradiant

1. present participle of irradier