n. One who invents, either as a hobby or as an occupation.
the GNU version of the Collaborative International Dictionary of English
n. One who invents or finds out something new; a contriver; especially, one who invents mechanical devices, new drugs, new processes, or other useful objects or procedures.
The Century Dictionary and Cyclopedia
n. One who invents or devises something new; one who makes an invention.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. someone who is the first to think of or make something
Word Usage
"Cool detail: the inventor is a regular at rec. music.makers.piano, and posted there while working on the design."