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eyespot

[ahy-spot]
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noun
  1. a sensory organ of lower animals, having a light-perceiving function.
  2. an eyelike spot, as on the tail of a peacock; eye.
  3. Plant Pathology. a disease of plants, characterized by elliptical lesions on the leaves and stems, stunting of growth, and rotting, caused by any of several fungi.
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Origin of eyespot

First recorded in 1580–90; eye + spot
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for eyespot

Historical Examples

  • The wing-patterns are handsome and striking; usually an unsealed “eyespot” is conspicuous at the end of each discoidal areolet.

    Encyclopaedia Britannica, 11th Edition, Volume 16, Slice 4

    Various


British Dictionary definitions for eyespot

eyespot

noun
  1. a small area of light-sensitive pigment in some protozoans, algae, and other simple organisms
  2. an eyelike marking, as on the wings of certain butterflies
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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

eyespot in Science

eyespot

spŏt′]
  1. An area that is sensitive to light and functions somewhat like an eye, found in certain single-celled organisms as well as many invertebrate animals.
  2. A round marking resembling an eye, as on the tail feather of a peacock.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.