(chemistry) An intermediate state in a chemical reaction that has a higher free energy than the reactants or the products

(UK, Ireland) A town in the British and Ireland that is a member of the Transition Towns movement and is striving to develop a higher standard of living and an environmentally friendly future.

plural of transition town

A large-scale transportation system in which the passengers do not travel in their own vehicles.

(physics) The temperature at which one phase of a material changes into another; a transition point / (physics, chemistry) The temperature at which one form of a polymorph changes into another

plural of transition metal

plural of transition element

plural of transitive verb

(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.

(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.