radiopaque vs radio-opaque

radiopaque and radio-opaque both are adjectives.

Word	Noun	Adjective	Verb	Adverb
radiopaque	No	Yes	No	No
radio-opaque	No	Yes	No	No

As adjectives, radiopaque and radio-opaque are synonyms defined as:

radiopaque and radio-opaque: not transparent to X-rays or other forms of radiation

radiopaque (adjective)	radio-opaque (adjective)
not transparent to X-rays or other forms of radiation	not transparent to X-rays or other forms of radiation