Meringue (noun)

1. A sweet mixture of beaten egg whites and sugar, typically spread on top of a pie or pavlova before baking.
2. A dessert made of this mixture.

Origin:

Late 17th century: from french, from provençal merenga, from mer "sea" (because of its foam-like appearance) + -enge, by association with old provençal al-merenja "sweetmeat".

Examples:

1. The lemon meringue pie was my favorite dessert at the restaurant.
2. She spread a thick layer of meringue on top of the pavlova before baking it.
3. The meringue was perfectly light and airy, just how I like it.
4. I had never tried meringue before, but it was delicious!
5. He topped his chocolate mousse with a dollop of meringue for a sweet crunch.