ōˈseləs noun
( plural ocel·li -eˌlī, -e(ˌ)lē)
Etymology: New Latin, from Latin, small eye, diminutive of oculus eye — more at eye
1.
a. : a minute simple eye or eyespot found in many organisms ; specifically : one of usually three simple eyes in an insect located in a triangle between the compound eyes
b. : one of the elements of a compound eye
2. : a spot of color encircled by a band of another color : an eyelike spot
a butterfly with a striking ocellus on its wing