Placuna placenta vs window oyster

Placuna placenta and window oyster both are nouns.

Word	Noun	Adjective	Verb	Adverb
Placuna placenta	Yes	No	No	No
window oyster	Yes	No	No	No

As nouns, Placuna placenta and window oyster are synonyms defined as:

Placuna placenta and window oyster: marine bivalve common in Philippine coastal waters characterized by a large thin flat translucent shell

Other synonyms of Placuna placenta include capiz, windowpane oyster.

Placuna placenta (noun)	window oyster (noun)
marine bivalve common in Philippine coastal waters characterized by a large thin flat translucent shell	marine bivalve common in Philippine coastal waters characterized by a large thin flat translucent shell