from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. One who, or that which, specializes.
from The Century Dictionary and Cyclopedia
- n. One who makes a specialty of anything; a specialist. Also spelled specialiser.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. an expert who is devoted to one occupation or branch of learning
specialize + -er (Wiktionary)