[ ik-thee-ol-uh-jee ]

  1. the branch of zoology dealing with fishes.

Origin of ichthyology

First recorded in 1640–50; ichthyo- + -logy

Other words from ichthyology

  • ich·thy·o·log·ic [ik-thee-uh-loj-ik], /ˌɪk θi əˈlɒdʒ ɪk/, ich·thy·o·log·i·cal, adjective
  • ich·thy·o·log·i·cal·ly, adverb
  • ich·thy·ol·o·gist, noun

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use ichthyology in a sentence

  • From his description the ichthyologist Walbaum, in 1792, named it probatocephalus, which being translated means "sheep head."

    Bass, Pike, Perch, and Others | James Alexander Henshall
  • Some ichthyologist may show a distinction without a difference.

    A Breeze from the Woods, 2nd Ed. | William Chauncey Bartlett
  • Your replacement, who calls himself an ichthyologist, has only one talent that pertains to fish—he drinks like one.

    Tabby | Winston Marks
  • It was first described by the Cuban ichthyologist Poey, in 1860, from Cuban waters.

    Bass, Pike, Perch, and Others | James Alexander Henshall
  • There were at least fifteen different species which nothing short of an ichthyologist could enumerate correctly.

    Blown to Bits | R.M. Ballantyne

British Dictionary definitions for ichthyology


/ (ˌɪkθɪˈɒlədʒɪ) /

  1. the study of the physiology, history, economic importance, etc, of fishes

Derived forms of ichthyology

  • ichthyologic (ˌɪkθɪəˈlɒdʒɪk) or ichthyological, adjective
  • ichthyologically, adverb
  • ichthyologist, noun

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Scientific definitions for ichthyology


[ ĭk′thē-ŏlə-jē ]

  1. The scientific study of fish.

The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.