semitransparency vs translucence

semitransparency and translucence both are nouns.

Word	Noun	Adjective	Verb	Adverb
semitransparency	Yes	No	No	No
translucence	Yes	No	No	No

As nouns, semitransparency and translucence are synonyms defined as:

semitransparency and translucence: the quality of allowing light to pass diffusely

Other synonyms of semitransparency include translucency.

semitransparency (noun)	translucence (noun)
the quality of allowing light to pass diffusely	the quality of allowing light to pass diffusely