—adj.ek'spûrt, ik-spûrt'), [key]
1. a person who has special skill or knowledge in some particular field; specialist; authority: a language expert.
a. the highest rating in rifle marksmanship, above that of marksman and sharpshooter.
b. a person who has achieved such a rating.
1. possessing special skill or knowledge; trained by practice; skillful or skilled (often fol. by in or at): an expert driver; to be expert at driving a car.
2. pertaining to, coming from, or characteristic of an expert: expert work; expert advice.
to act as an expert for.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.