n.1 the act or an instance of separating; the state of being separated.
2 (in full judicial separation or legal separation) an arrangement by which a husband and wife remain married but live apart.
3 any of three or more monochrome reproductions of a coloured picture which can combine to reproduce the full colour of the original.
Phrases and idioms:
separation order an order of court for judicial separation.
Etymology: ME f. OF f. L separatio -onis (as SEPARATE)