Definitions

1. noun

Any of a large group of extinct marine arthropods that are characterized by a three-part division of the head and body, having three lobes on the head and body, and typically two pairs of antennae and a pair of compound eyes.

“The paleontologist carefully examined the fossilized trilobite in the museum’s collection.”

2. noun

A three-part division or structure.

“The company’s new policy has a trilobite approach to employee benefits.”