transition state
Noun
Meaning
English Wikipedia has an article on:transition stateWikipedia
transition state (plural transition states)
(chemistry) An intermediate state in a chemical reaction that has a higher free energy than the reactants or the products
Examples
The transition state of manners and language cannot be too often insisted upon: for this affected the process at both ends, giving the artist in fictitious life an uncertain model to copy and unstable materials to work in.
Every chemical reaction has a transition state.