1. being at the forefront of something, significant or important
prominent member/field/colour, rise to prominence
The adjective prominent is used to describe something or someone well known, important or famous. "He is a prominent member of our community everybody knows his name." Something prominent can also be projecting outward from something else, jutting out or protruding. "A prominent raised scar started over his eye and stopped near his chin." Something prominent is also obvious or noticeable, "The bridge is the most prominent landmark in the town so I'll give you directions from there."