ocellus

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o·cel·lus

 (ō-sĕl′əs)
n. pl. o·cel·li (ō-sĕl′ī′)
1. A simple eye, found in many invertebrates, consisting of a number of sensory cells and often a single lens.
2. A marking that resembles an eye, as on the tail feathers of a male peacock; an eyespot.

[Latin, diminutive of oculus, eye; see okw- in Indo-European roots.]

o·cel′lar (ō-sĕl′ər) adj.

ocellus

(ɒˈsɛləs)
n, pl -li (-laɪ)
1. (Zoology) the simple eye of insects and some other invertebrates, consisting basically of light-sensitive cells
2. (Biology) any eyelike marking in animals, such as the eyespot on the tail feather of a peacock
3. (Botany) botany
a. an enlarged discoloured cell in a leaf
b. a swelling on the sporangium of certain fungi
[C19: via New Latin from Latin: small eye, from oculus eye]
oˈcellar adj
ocellate, ocellated adj
ˌocelˈlation n

o•cel•lus

(oʊˈsɛl əs)

n., pl. o•cel•li (oʊˈsɛl aɪ)
1. the simple eye of many invertebrates, consisting of retinal cells, pigments, and nerve fibers.
2. an eyelike spot, as on a peacock feather.
[1810–20; < Latin: little eye, diminutive of oculus eye; see -elle]
o•cel′lar, adj.
oc•el•lat•ed (ˈɒs əˌleɪ tɪd, oʊˈsɛl eɪ tɪd) oc•el•late (ˈɒs əˌleɪt, oʊˈsɛl ɪt, -eɪt) adj.

o·cel·lus

(ō-sĕl′əs)
Plural ocelli (ō-sĕl′ī′)
1. A small, simple eye or eyespot, found in many invertebrates.
2. A marking that resembles an eye, as on the wings of some butterflies.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.ocellus - an eye having a single lens
eye, oculus, optic - the organ of sight
ommatidium - any of the numerous small cone-shaped eyes that make up the compound eyes of some arthropods
2.ocellus - an eyelike marking (as on the wings of some butterflies)ocellus - an eyelike marking (as on the wings of some butterflies); usually a spot of color inside a ring of another color
marking - a pattern of marks
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