openwork; fretwork
Refers to decorative work with openings, such as carved wood, metal, or other materials where patterns are created by cutting through the material.
The openwork on this transom is beautiful.
A metal plate with openwork is used.
Compound of 透かし (sukashi, 'openwork' or 'transparency') and 細工 (saiku, 'craftwork'). The exact historical derivation is uncertain, but the term has been used for decorative pierced work in various traditional crafts.