noun · 4 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
Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.
UK:/ˌɹeɪdiˈɒlədʒi/
Southern-England:Recorded audio is listed in the source snapshot.
US:/ˌɹeɪdiˈɑlədʒi/
rhymes with -ɒlədʒi
CMU ARPABET:R EY2 D IY0 AA1 L AH0 JH IY0
Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.
1
noun
Meaning 1
The specialty of medical imaging and its interpretation, originally and especially radiography but now including all imaging modalities, including ones that use no radiation (such as ultrasonography and magnetic resonance imaging).
Definition source: English Wiktionary via Wiktextract
Usage: uncountable
Topics: medicine, sciences
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
2
noun
Meaning 2
The use of radioactive substances in diagnosis and treatment (which today is the province of nuclear medicine).
Definition source: English Wiktionary via Wiktextract
Usage: obsolete, uncountable
Topics: medicine, sciences
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
3
noun
Meaning 3
(radiology) examination of the inner structure of opaque objects using X rays or other penetrating radiation
Definition source: Princeton WordNet 3.0
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: radioscopy
Antonyms: none provided
Broader terms: imaging, tomography
Narrower terms: fluoroscopy
4
noun
Meaning 4
the branch of medical science dealing with the medical use of X-rays or other penetrating radiation
Definition source: Princeton WordNet 3.0
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
Broader terms: medical science
History
Etymology
From radio- + -logy.
Across languages
Translations
33 source translations are retained for this English entry.
Armenian:
ճառագայթաբանություն
(čaṙagaytʻabanutʻyun)
— the specialty of medical imaging
Bulgarian:
рентгеноло́гия
(rentgenológija)
— the specialty of medical imaging
Bulgarian:
радиоло́гия
(radiológija)
— the specialty of medical imaging
Catalan:
radiologia
— the specialty of medical imaging
Chinese Mandarin:
放射線學 /放射线学
(fàngshèxiànxué)
— the specialty of medical imaging
Chinese Mandarin:
放射學 /放射学
(fàngshèxué)
— the specialty of medical imaging
Czech:
radiologie
— the specialty of medical imaging
Danish:
radiologi
— the specialty of medical imaging
Dutch:
radiologie
— the specialty of medical imaging
Finnish:
radiologia
— the specialty of medical imaging
French:
radiologie
— the specialty of medical imaging
Galician:
radioloxía
— the specialty of medical imaging
German:
Radiologie
— the specialty of medical imaging
German:
Röntgenologie
— the specialty of medical imaging
Hindi:
विकिरण विज्ञान
(vikiraṇ vijñān)
— the specialty of medical imaging
Icelandic:
geislalækningar
— the specialty of medical imaging
Icelandic:
geislunarfræði
— the specialty of medical imaging
Irish:
raideolaíocht
— the specialty of medical imaging
Italian:
radiologia
— the specialty of medical imaging
Japanese:
放射線学
(hōshasengaku)
— the specialty of medical imaging
Kazakh:
радиология
(radiologiä)
— the specialty of medical imaging
Korean:
방사선학
(bangsaseonhak)
— the specialty of medical imaging
Latin:
radiologia
— the specialty of medical imaging
Navajo:
aghádaʼdeełdlaadígíí
— the specialty of medical imaging
Persian:
رادیولوژی
(râdiyoloži)
— the specialty of medical imaging
Polish:
radiologia
— the specialty of medical imaging
Portuguese:
radiologia
— the specialty of medical imaging
Russian:
радиоло́гия
(radiológija)
— the specialty of medical imaging
Russian:
рентгеноло́гия
(rentgenológija)
— the specialty of medical imaging
Spanish:
radiología
— the specialty of medical imaging
Swahili:
radiolojia
— the specialty of medical imaging
Tagalog:
paladiglapan
— the specialty of medical imaging
Turkish:
radyoloji
— the specialty of medical imaging