Definition of mayonnaises:
(n) :
A dressing made from vegetable oil, raw egg yolks, vinegar or lemon juice, and seasoning, used on salads, with french fries, in sandwiches etc.
(n) :
Any cold dish with that dressing as an ingredient.
(v) :
(transitive) To cover or season with mayonnaise.
(n) :
Any cream, for example for moisturizing the face or conditioning the hair, for which the base is egg yolks and oil.
(n) :
(Australia, informal) Exaggeration.
(n) :
(obsolete) In full Mayonnaise sauce or sauce Mayonnaise: alternative letter-case form of mayonnaise.