Also found in: Thesaurus, Medical, Encyclopedia, Wikipedia.


1. A silvery freshwater fish (Hiodon tergisus) of central and eastern North America, having large round eyes.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


1. (Animals) any of several North American large-eyed freshwater clupeoid fishes of the family Hiodontidae, esp Hiodon tergisus. See also goldeye
2. (Veterinary Science) vet science another name for moon blindness2
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014



n., pl. -eyes.
a large-eyed silvery freshwater fish, Hiodon tergisus.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.mooneye - recurrent eye inflammation in horses; sometimes resulting in blindness
animal disease - a disease that typically does not affect human beings
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
Seasonal parasitic infections in mooneye, Hiodon tergisus (LeSueur), from the Assiniboine River.
In the current study, we assessed diet metrics of age-0 (those individuals born within the last year) freshwater drum (Aplodinotus grunniens [Rafinesque]) and goldeye and mooneye (Hiodon alosoides [Rafinesque], Hiodon tergisus [Lesueur]) to determine trophic responses by fishes to creation of chute shallow-water habitats on the lower Missouri River.
Other findings include new records and range extension for rarely collected species such as the mooneye (Hiodon tergisus), bluehead shiner (Pteronotropis hubbsi), mud darter (Etheostoma asprigene), swamp darter (Etheostoma fusiforme), and the undescribed Ouachita darter (Percina sp.).
In the Iranian capital of Tehran, it was reported that an unprecedented ceremony took place on Sunday in which a price was put on the heads of the top ranking Israeli security officials as revenge for the assassination of Hizbullah arch terrorist Imad Mooneye last month.