— unsaturate /un sach"euhr it, -euh rayt'/ , n. — unsaturation , n.
/un sach"euh ray'tid/ , adj.
1. not saturated; having the power to dissolve still more of a substance.
2. Chem. (of an organic compound) having a double or triple bond and capable of taking on elements or groups by direct chemical combination without the liberation of other elements or compounds, as ethylene, CH 2 =CH 2 ; undersaturated.
[ 1750-60; UN- 1 + SATURATED ]