Definitions for: Mayonnaise

[n] egg yolks and oil and vinegar

Webster (1913) Definition: Ma`yon`naise", n. [F.]
A sauce compounded of raw yolks of eggs beaten up with olive
oil to the consistency of a sirup, and seasoned with vinegar,
pepper, salt, etc.; -- used in dressing salads, fish, etc.
Also, a dish dressed with this sauce.

See Also: dressing, green mayonnaise, salad dressing, sauce verte