A / astrictĭo
noun

astrictĭo

gen. astrictōnis · gender feminine · decl. 3rd
(), , astringo.
A power of contracting; astringency
A power of contracting, astringency: herba gustūs amari cum adstrictione, Plin. 27, 10, 59, § 83.—
The act of sharpening
The act of sharpening, Cod. Th. 1, 4, 3.