ichthyolatry

from WordNet (r) 3.0 (2006)

ichthyolatry
    n 1: the worship of fish [syn: {ichthyolatry}, {fish-worship}]

from The Collaborative International Dictionary of English v.0.48

Ichthyolatry \Ich`thy*ol"a*try\, n. [Gr. 'ichqy`s, -y`os, a fish
   + ? to worship.]
   Worship of fishes, or of fish-shaped idols. --Layard.
   [1913 Webster]