eye-spot

eye-spot
1) a photosensitive structure in the anterior ventral surface of the brain in Amphioxi; contains primitive homologues of rods and cones and is probably able to detect differences in quantity of light but incapable of forming an image
2) any spot resembling an eye, often functioning to distract or confuse predators. Also called an ocellus

Dictionary of ichthyology. 2009.

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  • eye-spot — eyeˈ spot noun 1. A spot like an eye 2. Any of several diseases of plants causing eye shaped spots to appear on the leaves and stem 3. A rudimentary organ of vision • • • Main Entry: ↑eye …   Useful english dictionary

  • Eye-spot — n. (Zo[ o]l.) (a) A simple visual organ found in many invertebrates, consisting of pigment cells covering a sensory nerve termination. (b) An eyelike spot of color. [1913 Webster] …   The Collaborative International Dictionary of English

  • eye|spot — «Y SPOT», noun. 1. the simplest kind of organ for seeing, found in many lower animals, such as the euglena and starfish. It consists of a group of pigmented cells. »Near the base of the flagella is an eyespot (Fred W. Emerson). 2. a spot or… …   Useful english dictionary

  • eye spot — see eye spot …   Dictionary of ichthyology

  • eye-spot|ted — «Y SPOT ihd», adjective. having spots resembling eyes …   Useful english dictionary

  • eye spot — 1. the rudiment of an eye in the embryo. 2. eyespot …   Medical dictionary

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  • bird's-eye spot — noun : a disease of plants characterized by round dark spots with lighter surrounding tissue suggesting the appearance of a bird s eye: as a. : a disease of tea leaves caused by a fungus (Cercospora theae) b. : a leaf spot of the Hevea rubber… …   Useful english dictionary

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