ocellus
nounA simple eye, found in many invertebrates, consisting of a number of sensory cells and often a single lens.
nounA marking that resembles an eye, as on the tail feathers of a male peacock; an eyespot.
nounA little eye; an eye-spot; a stemma; one of the minute simple eyes of insects and various other animals.
nounOne of the simple elements or facets of a compound eye. See cut of compound eye, under eye.
nounIn Hydromedusæ, a pigment-spot at the base of the tentacles, or combined with other marginal bodies, in some cases provided with refractive structures which recall the crystalline cones of some other low invertebrates. Also called
One of the round spots of varied color, consisting of a central part (the pupil) framed in a peripheral part, such as characterize the tail of a peacock or the wing of an argus-pheasant.
nounSee the adjectives.
nounA little eye; a minute simple eye found in many invertebrates.
nounAn eyelike spot of color, as those on the tail of the peacock.
nounA simple