the GNU version of the Collaborative International Dictionary of English
n. One who effects.
The Century Dictionary and Cyclopedia
n. One who or that which effects, produces, or causes. Also effector.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. one who brings about a result or event; one who accomplishes a purpose
Word Usage
"Several SNPs in PTGER3 were significant in the combined MoBa and Cenn maternal samples, supporting the role of variation in this contractile agent in the final effecter pathway and PTB."