(chemistry) any ion containing more than one atom. e.g. sulphate as opposed to sulphide

(mathematics) The branch of mathematics that studies holomorphic functions.

The facilities and support equipment needed to assemble, test and launch a rocket-powered vehicle

(grammar) a sentence that contains an independent clause as well as one or more dependent clauses, such as a relative clause, an adverbial clause, or a noun clause.

(mathematics) a representation of the space of complex numbers

(mathematics) A 2-dimensional CW complex encoding information about a group and its presentation.

(topology) A collection of balls of various dimensions, with higher-dimensional ones mapped along their respective boundaries to lower-dimensional ones.

(biochemistry) A group of two or more associated proteins that remains stable over time.

(psychology) The incestuous sexual desire of a mother towards her son.

(complex analysis, analytic geometry) A 1-dimensional affine subspace of a vector space over the complex numbers.