the GNU version of the Collaborative International Dictionary of English
n. The science which relates to the formation and development of the embryo in animals and plants; a study of the gradual development of the ovum until it reaches the adult stage.
The Century Dictionary and Cyclopedia
n. That department of science which relates to the development of embryos.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. the branch of biology that studies the formation and early development of living organisms
Word Usage
"If that were possible, I'd spend one lifetime each in embryology, genetics, physics, astronomy and geology."