a : a point of transition (as from one historical period to the next) : turning point also : edge, verge on the cusp of stardom

Definition of cusp noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

Decoherence on the coin only does not produce a top-hat distribution, instead the distribution develops a cusp as it passes from quantum to classical.

cusp (kʌsp) n. 1. a point or pointed end. 2. an anatomical point or prominence, as on the crown of a tooth or on a valve of the heart. 3. a point where two branches of a curve meet, end, and are tangent.

cusp in American English (kʌsp ) noun Origin: L cuspis (gen. cuspidis), point, pointed end, spear

Nov 1, 2025 · cusp (third-person singular simple present cusps, present participle cusping, simple past and past participle cusped) (slang) To behave in a reckless or dangerous manner.

There are ten meanings listed in OED's entry for the noun cusp, one of which is labelled obsolete. See ‘Meaning & use’ for definitions, usage, and quotation evidence.

What is a cusp? Most often, cusp is used figuratively to mean a turning point or a point that marks a new beginning, as in Jorge was on the cusp of a scientific breakthrough when his grant money ran out.

cusp (kusp), n. a point or pointed end. Anatomy, Botany, Zoology a point, projection, or elevation, as on the crown of a tooth. Mathematics Also called spinode. [Geom.]a point where two branches of a …

CUSP meaning: 1 : a pointed end or part where two curves meet; 2 : at the point when something is about to change to something else