(mathematics) The systematic study of the situation of maps' having a homotopy between them; the study of equivalence classes (called homotopy classes) of maps.

(complex analysis) A part of the theory of meromorphic functions that describes the asymptotic distribution of solutions to the equation ƒ(z) = a, as a varies.

(complex analysis, differential geometry) A geometric counterpart to Nevanlinna theory that extends the applicability of the concept of covering surface (of a topological space) by defining a covering number (a generalised "degree of covering") applicable to any bordered Riemann surface equipped with a conformal Riemannian metric.

(cricket, dated) The tactic of bowling at or near the line of leg stump, so as to cramp the batsman.

Any of various theories of human motivation built on Douglas McGregor's Theory X and Theory Y.

The theory that people who are regularly exposed to mass media eventually come to perceive the world's social realities as presented by the media, affecting their attitudes and behaviours.

(economics) An applied branch of economics, studying how bidders act in auction markets and how the features of such markets incentivize predictable outcomes.

(neurology, mathematics) The use of mathematical models to calculate the electric current and accompanying voltage along passive neurites, particularly the dendrites that receive synaptic inputs at different sites and times.

(cognitive science, psychology) A theory of categorization in cognitive science, particularly in psychology and cognitive linguistics.

A mathematical formalism for describing knowledge of the world in terms of patterns that can be studied using statistical methods.