(mathematics, somewhat informal) Proof in stages, each of which, in general, depends on the previous stages and can be visualized by means of a diagram of morphisms.

(mathematics) A diagram that assigns a set of points in a plane to an equal number of cells, such that each point p is inside a cell consisting of all regions closer to p than to any other point.

(business) A graphical aid used to assist in the creation of efficient manufacturing practices by depicting the actual physical movement and distances involved in manufacturing processes.

A diagram representing some sets by contours of closed shapes, typically circles and ellipses, and indicating the relationships between the sets.

Abbreviation of pressure volume diagram.

(dated) pressure volume diagram

(geometry) A projection of a polytope from n-dimensional space to n-1 dimensions through a point beyond one of its faces; especially such a projection (itself represented in 2 dimensions) of a 3- or 4-dimensional polytope.

(geometry, algebra) A Coxeter-Dynkin diagram.

A kind of diagram used to plot the positions of the poles and zeroes of a function in the complex plane.

An existential diagram consisting of a Euler diagram or a Venn diagram annotated with logical operators.