radio-
التعريفات والمعاني
== English ==
=== Alternative forms ===
radi-, rad-
=== Etymology ===
Derived from Latin radius (“ray”). By surface analysis, clipping of radiation + -o-.
=== Pronunciation ===
Homophone: radio
Hyphenation: ra‧di‧o-
=== Prefix ===
radio-
radiation, radioactive
e.g. radiotherapy, radioactinium, radiolucent
radio (broadcasting)
e.g. radiotelemetry, radioacoustics, radiotelegraph
(anatomy) radius (bone)
e.g. radiobicipital
(geometry) radius
e.g. radiosymmetrical
==== Derived terms ====
==== Translations ====
=== References ===
“radi-, combining form”, in Merriam-Webster.com Online Dictionary, Springfield, Mass.: Merriam-Webster, 1996–present.
=== Further reading ===
“radio-”, in OneLook Dictionary Search.
=== Anagrams ===
aroid, doira
== Catalan ==
=== Etymology ===
Ultimately from Latin radio-.
=== Pronunciation ===
IPA(key): (Northern, Central) [rə.ði.u]
IPA(key): (Balearic) [rə.ði.o]
IPA(key): (Valencia, Northwestern) [ra.ði.o]
Hyphenation: ra‧di‧o-
=== Prefix ===
radio-
radio- (radiation)
radio- (radio, broadcasting)
==== Derived terms ====
== Corsican ==
=== Alternative forms ===
radiu-
=== Etymology ===
Ultimately from French radio-. Akin to Italian radio- and Spanish radio-.
=== Pronunciation ===
IPA(key): /ra.di.o-/
Hyphenation: ra‧di‧o-
=== Prefix ===
radio-
radio- (clarification of this definition is needed)
==== Derived terms ====
== Dutch ==
=== Etymology ===
Ultimately from Latin radio-.
=== Pronunciation ===
IPA(key): /ˌraː.di.oː-/
Hyphenation: ra‧di‧o-
=== Prefix ===
radio-
radio- (clarification of this definition is needed)
==== Derived terms ====
== Finnish ==
=== Etymology ===
Internationalism (see English radio-), ultimately from Latin radio-.
=== Pronunciation ===
IPA(key): /ˈrɑdio-/, [ˈrɑ̝dio̞-]
=== Prefix ===
radio-
(chiefly in loanwords) radio- (radiation)
==== Derived terms ====
See also the compounds under radio.
== French ==
=== Etymology ===
Derived from Latin radius (“ray”).
=== Pronunciation ===
IPA(key): /ʁa.djo/
Hyphenation: ra‧dio-
=== Prefix ===
radio-
radio- (radiation)
radio- (radio, broadcasting)
==== Derived terms ====
== German ==
=== Etymology ===
Derived from Latin radius (“ray”).
=== Pronunciation ===
IPA(key): [ʁaː.di̯o-]
Hyphenation: ra‧dio-
=== Prefix ===
radio-
radio- (radiation)
radio- (radio, broadcasting)
==== Derived terms ====
=== Further reading ===
“radio-”, in Digitales Wörterbuch der deutschen Sprache[1] (in German)
“radio-” in Duden online
== Hungarian ==
=== Etymology ===
Derived from Latin radius (“ray of light”).
=== Pronunciation ===
IPA(key): [ˈrɒdijo], [ˈraːdijoː]
Hyphenation: ra‧di‧o-
=== Prefix ===
radio-
radio- (clarification of this definition is needed)
==== Usage notes ====
The radio- prefix is written with short a and o in Hungarian compound words. However, it can be pronounced both short and long. The long pronunciation is influenced by the noun rádió.
==== Derived terms ====
=== References ===
== Italian ==
=== Etymology ===
Ultimately from Latin radio-.
=== Pronunciation ===
IPA(key): /ˌra.djo/
Hyphenation: rà‧dio-
=== Prefix ===
radio-
radio- (clarification of this definition is needed)
==== Derived terms ====
=== Further reading ===
ràdio– 1 in Dizionario Italiano Olivetti, Olivetti Media Communication
ràdio– 3 in Dizionario Italiano Olivetti, Olivetti Media Communication
=== Anagrams ===
Adrio, Dario, Doria, adiro, adirò, adori, arido, dorai, rioda, rodai
== Latin ==
=== Etymology ===
From radius (“ray (of light)”).
=== Pronunciation ===
(Classical Latin) IPA(key): [ˈra.di.ɔ]
(modern Italianate Ecclesiastical) IPA(key): [ˈraː.di.o]
Hyphenation: ra‧di‧o-
=== Prefix ===
radio-
combining form of radius
radio- + dūrāns (“enduring”) → radiodūrāns
==== Derived terms ====
== Polish ==
=== Etymology ===
Learned borrowing from Latin radio-.
=== Pronunciation ===
IPA(key): /ra.djɔ/
Rhymes: -adjɔ
Syllabification: ra‧dio-
Homophone: radio
=== Prefix ===
radio-
radio- (radiation)
radio- + -grafia → radiografia
radio- (radio, broadcasting)
radio- + słuchowisko → radiosłuchowisko
==== Derived terms ====
==== Related terms ====
=== References ===
=== Further reading ===
“radio-”, in Polish dictionaries at PWN[2] (in Polish)
== Portuguese ==
=== Etymology ===
Ultimately from Latin radio-.
=== Pronunciation ===
Hyphenation: ra‧di‧o-, ra‧dio-
=== Prefix ===
radio-
radio- (radiation)
radio- (radio, broadcasting)
==== Derived terms ====
=== Further reading ===
“radio-”, in Dicionário Aulete Digital (in Portuguese), Rio de Janeiro: Lexikon Editora Digital, 2008–2026
“radio-”, in Dicionário Priberam da Língua Portuguesa (in Portuguese), Lisbon: Priberam, 2008–2026
== Spanish ==
=== Etymology ===
Borrowed from French radio-.
=== Pronunciation ===
IPA(key): /radjo/ [ra.ð̞jo]
Syllabification: ra‧dio-
=== Prefix ===
radio-
radio- (radiation)
radio- (radio, broadcasting)
==== Derived terms ====
=== Further reading ===
“radio-”, in Diccionario de la lengua española [Dictionary of the Spanish Language] (in Spanish), online version 23.8.1, Royal Spanish Academy [Spanish: Real Academia Española], 15 December 2025