hard sphere
chiefly Physics
noun
(As a concept in theoretical models) an idealized sphere that is perfectly hard, inelastic, and impenetrable.
Origin
Early 19th century.
- notandum
- not a patch on
- notaphilic
- notaphilist
- notaphily
- not a pretty sight
- not a proposition
- Notar
- notarial
- notarial act
- notarially
- notariate
- notaricon
- notarikon
- notariqon
- notarisation
- notarise
- notarization
- notarize
- notary
- notary public
- not a sausage
- not as black as one is painted
- not at all
- notate