(graph theory) Given a directed graph, a maximal strongly connected subgraph.

(topology and graph theory) A connected subset that is, moreover, maximal with respect to being connected.

(US, insurance, business) An item to be used as a subcomponent and tested for safety by Underwriters Laboratories ("UL"); the item will have a special trademark of UL.

(computer science) A data type that can be constructed in a programming language out of that language's primitive types and other composite types; exemplified by array, structure, and class.

(physics) Any combination of simple machines working together

(topology) A solid torus whose boundary is a leaf of a foliation of the ambient 3-dimensional manifold.

(grammar) Two or more imperative clauses joined in a single sentence / (grammar, in some languages) A word constructed from the imperative of a verb plus one or more pronouns

Any organic chemical compound that can significantly vaporize under conditions of normal atmospheric temperature and pressure.

(number theory) A (nonzero) natural number that is expressible as the product of two (or more) natural numbers other than itself and 1.

plural of composite number