noun which may take the genitive case particle 'no'
semigloss; semimatte; semimat
Technical term used in paint, coating, and finish descriptions to indicate a surface sheen between glossy and matte.
この塗料は半光沢仕上げになります。
This paint gives a semigloss finish.
つや消し is 'matte' or 'flat' finish, with no gloss; 半光沢 has a moderate sheen.
Compound of 半 (half) and 光沢 (gloss, luster). A straightforward technical term.