(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.

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

(chemistry) A transition element

plural of transitive verb

plural of transition metal

plural of transition element

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 mass transit

(physics) The stage in the flow or a fluid during which it changes from laminar to turbulent / (geology) The region between the upper and lower mantle characterized by a rapid increase in density