Phrase guide

radiation therapy

noun · 2 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

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No pronunciation record was provided for this word.

1

noun

Meaning 1

The use of ionizing radiation to treat disease, especially cancer.

Definition source: English Wiktionary via Wiktextract

Usage: uncountable

Topics: medicine, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: irradiation, radiotherapy, therapeutic radiology

Antonyms: none provided

2

noun

Meaning 2

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

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: radiotherapy, radiation, actinotherapy, irradiation

Antonyms: none provided

Broader terms: therapy

Narrower terms: phototherapy, radium therapy, Curietherapy, X-ray therapy

History

Etymology

No etymology was provided for this word.