plural of Aronhold set

(geometry) One of the 288 sets of seven of the 28 bitangents of a quartic curve corresponding to the seven odd theta characteristics of a normal set.

plural of train set

A small model railroad with trains that move around the tracks by electricity (formerly by clockwork) / Alternative form of trainset.

plural of set screw

(mathematics, physics) A set of spacetimes that have a causality relationship

(transitive, idiomatic) To make (a person or persons) argue; to set quarrelling.

plural of countable set

(mathematical analysis, topology) A subset of an interval formed by recursively removing an interval in the middle of every connected component of the set.

To prepare for something by providing a background, a description, etc.