radiate.
To extend, be sent or spread out from a center like radii.
Meaning & usage
To extend, be sent or spread out from a center like radii.
To emit rays or waves.
The stove radiates heat.
To come out or proceed in rays or waves.
The heat radiates from a stove.
To illuminate.
To expose to ionizing radiation, such as by radiography.
To manifest in a glowing manner.
Her face radiated joy. Her face radiated with joy.
To manifest itself in a glowing manner.
Joy radiated from her face.
To spread into new habitats, migrate.
To broadcast by radio.
Where this word comes from
Learned borrowing from Latin radiātus, perfect passive participle of radiō (“to radiate, furnish with spokes, give out rays, radiate, shine”) (see -ate (verb-forming suffix)), from radius (“a spoke, ray”).
Radiating from a center; having rays or parts diverging from a center; radiated.
a radiate crystal
Surrounded by rays, such as the head of a saint in a religious picture; (heraldry) radiant.
Having parts radiating from the center, like the petals in many flowers.
Consisting of a disc in which the florets are tubular.
Having radial symmetry, like a sea star.
Belonging to the Radiata.
Where this word comes from
Learned borrowing from Latin radiātus (see Etymology 1 and -ate (adjective-forming suffix) for more).
One of the Radiata.
Where this word comes from
From a substantivation of the above adjective through the associated taxon's name (Radiata), see -ate (noun-forming suffix).
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.