(graph theory, of a graph) Such that there exists a finite vertex set so that for any vertex there exists another vertex in that finite set and an injective homomorphism of the graph that maps the second vertex to the first vertex.

(graph theory, of a graph) Such that its vertex set can be partitioned into finitely many sets, so that there exists an automorphism mapping a vertex to another vertex if and only if the two vertices belong to the same set in that partition.

plural of transition metal

plural of transition element

(fluid dynamics) The point in space at which fluid flow around an object changes from laminar to turbulent.

(chemistry) A transition element

(physics) The transition between thermodynamic phases of a physical system, especially one between the solid, liquid, and gaseous phases of a substance.

(advertising) One of four archetypal dramatic structures of commercials, characterized by an emotionally neutral beginning with an enormous leap in positive emotions generated by seeing the branded product in use.

(computing theory) A function from (state, input symbol) to state describing what state to move to on receiving a given input in a given state.

(chemistry) Any of the group of metallic elements that have an incomplete inner (d) electron shell, having multiple valencies and forming coloured compounds and stable complex ions; the elements from scandium through copper, and those lying below them in the periodic table.