Definition of: liaison

(lē′ā·zon′, lē·ā′zon, lē′ə·zon; Fr. lē·ā·zô′) noun
1. An illicit intimacy between two persons of opposite sex; intrigue.
2. A bond or union: a liaison of the intellect.
3. In cookery, a thickening used in sauces, soups, etc., as yolks of eggs beaten with cream.
4. In speaking or reading French, the carrying over in pronunciation of a final consonant to a succeeding word beginning with a vowel or silent h, as in Est–il un homme? Applied also to such sound–unions in certain other languages.
5. Unity of action, as between distant fighting forces or between an executive officer and his subordinates, maintained by various forms of contact and communication.
—adjective Pertaining to one who or that which serves to maintain unity of action, as between an executive officer and his subordinates, or between parts of an army, etc.: a liaison officer. [<F <L ligatio <ligare bind]