(category theory) A functor from an index category to another category. The objects and morphisms of the index category need not have any internal substance, but rather merely outline the connective structure of at least some part of the diagram's codomain. If the index category is J and the codomain is C, then the diagram is said to be "of type J in C".
Other Word Forms of Diagram
Origin of Diagram
Latin diagramma figure from Greek a figure worked out by lines, plan from diagraphein to mark out, delineate dia- dia- graphein to write gerbh- in Indo-European roots
From American Heritage Dictionary of the English Language, 5th Edition
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