ocellus

noun

ocel·​lus ō-ˈse-ləs 

plural ocelli ō-ˈse-ˌlī  -(ˌ)lē 

1

: a minute simple eye or eyespot of an invertebrate

2

: an eyelike colored spot (as on a peacock feather or the wings of some butterflies)

ocellar

ō-ˈse-lər 

adjective

Word History

Etymology

New Latin, from Latin, diminutive of oculus eye — more at eye

First Known Use

1819, in the meaning defined at sense 1

Medical Definition

ocellus

noun

ocel·​lus ō-ˈsel-əs 

plural ocelli -ˈsel-ˌī  -(ˌ)ē 

: a minute simple eye or eyespot of an invertebrate

ocellar

ō-ˈsel-ər 

adjective