What is "oyster cracker"

n. A small, dry, usually round or hexagonal cracker.

n. a small dry usually round cracker

Oyster crackers are small, salted crackers, typically rounds about 0.59 in (15 mm) in diameter, although a slightly smaller hexagonal variety is also prevalent. They are often served with oyster stew, but oyster crackers do not contain oysters. They are similar in ingredients and flavor to saltine crackers.