What does "windowpane oyster" mean?

Placuna placenta, a bivalve marine mollusc in the family Placunidae, with a durable translucent shell.

What is a synonym for "windowpane oyster"?

Common synonyms include: capiz, placuna placenta, window oyster.

noun

noun ·Rare ·Advanced level

Noun

1
Placuna placenta, a bivalve marine mollusc in the family Placunidae, with a durable translucent shell.
2
marine bivalve common in Philippine coastal waters characterized by a large thin flat translucent shell wordnet

The translucent shells were traditionally used as a glass substitute.