n. The branch of zoology devoted to the study of fish.
the GNU version of the Collaborative International Dictionary of English
n. The natural history of fishes; that branch of zoölogy which relates to fishes, including their structure, classification, and habits.
The Century Dictionary and Cyclopedia
n. The science of fishes; that department of zoölogy which treats of fishes, with reference to their structure, relations to one another and to other animals, classification, habits, and uses. Abbreviated ichthyology
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. the branch of zoology that studies fishes
Word Usage
"Americans as individuals can and must do for ourselves and the nation -- ichthyology from the standpoint of the fish."