2. (Chem.)

Defn: The act, process, or result of saturating a substance, or of combining it to its fullest extent.

3. (Optics)

Defn: Freedom from mixture or dilution with white; purity; — said of colors.

Note: The degree of saturation of a color is its relative purity, or freedom from admixture with white.

SATURATOR sat"u*ra`tor, n. Etym: [L.]

Defn: One who, or that which, saturates.

SATURDAY
Sat"ur*day (; 48), n. Etym: [OE. Saterday, AS. Sæterdæg, Sæterndæg,
Sæternesdæg, literally, Saturn's day, fr. L. Saturnus Saturn + AS.
dæg day; cf. L. dies Saturni.]

Defn: The seventh or last day of the week; the day following Friday and preceding Sunday.

SATURITY
Sa*tu"ri*ty, n. Etym: [L. saturitas, fr. satur full of food, sated.]