D defs.my
Entry 1 sense Webster, 1913

Ichthyology

· Ich·thy·ol·o·gy · IPA /ˌɪkθiˈɒləd͡ʒi/
01 n. The natural history of fishes; that branch of Zoology which relates to fishes, including their structure, classification, and habits.
  1. 1.
    The natural history of fishes; that branch of Zoology which relates to fishes, including their structure, classification, and habits.