radiophone vs radiotelephone

radiophone and radiotelephone both are nouns.

Word	Noun	Adjective	Verb	Adverb
radiophone	Yes	No	No	No
radiotelephone	Yes	No	No	No

As nouns, radiophone and radiotelephone are synonyms defined as:

radiophone and radiotelephone: a telephone that communicates by radio waves rather than along cables

Other synonyms of radiophone include wireless telephone.

radiophone (noun)	radiotelephone (noun)
a telephone that communicates by radio waves rather than along cables	a telephone that communicates by radio waves rather than along cables
	telephony that uses transmission by radio rather than by wire