plural of screw

(geometry) Any of a certain family of graphs related to Keller's conjecture, such that the vertices of the Keller graph of dimension n are the 4ⁿ elements (m₁,...,mₙ) where each m is 0, 1, 2, or 3,...

Synonym of bring down the curtain (“bring something to an end”)

(historical) A hoisting-tackle with many pulleys.