Defn: An atomist. [R.]

ATOMICISM
A*tom"i*cism, n.

Defn: Atomism. [Obs.]

ATOMICITY
At`o*mic"i*ty, n. Etym: [Cf. F. atomicité.] (Chem.)

Defn: Degree of atomic attraction; equivalence; valence; also (a later use) the number of atoms in an elementary molecule. See Valence.

ATOMISM
At"om*ism, n. Etym: [Cf. F. atomisme.]

Defn: The doctrine of atoms. See Atomic philosophy, under Atomic.

ATOMIST
At"om*ist, n. Etym: [Cf. F. atomiste.]

Defn: One who holds to the atomic philosophy or theory. Locke.

ATOMISTIC
At`om*is"tic, a.