noun
mayonnaise
MAY-uh-nayz/ˈmeɪəneɪz/
A thick, creamy dressing made with oil and egg yolk.
The mayonnaise forms a thick dollop beside oil and an egg yolk.

Etymology
French mayonnaise originally referred to meat served in an oil-and-vinegar sauce; later thickened versions sometimes used eggs instead of gelatin or aspic. The name’s deeper origin is uncertain.
In context
now hollandaise just like mayonnaise is a fat and water emulsion
More examples
- She spread mayonnaise on the bread.
- The dressing contained mayonnaise.
- He chose a sandwich without mayonnaise.
Forms
mayonnaise
Similar words
- aioli
- Traditionally a garlic sauce, often made with a different base.
- dressing
- A broader category of sauces for food.