ocellus

noun
ocel·​lus | \ ō-ˈse-ləs How to pronounce ocellus (audio) \
plural ocelli\ ō-​ˈse-​ˌlī How to pronounce ocellus (audio) , -​(ˌ)lē \

Definition of ocellus

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)

Other Words from ocellus

ocellar \ ō-​ˈse-​lər How to pronounce ocellus (audio) \ adjective

First Known Use of ocellus

1819, in the meaning defined at sense 1

History and Etymology for ocellus

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

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The first known use of ocellus was in 1819

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Cite this Entry

“Ocellus.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ocellus. Accessed 19 Jun. 2021.

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More Definitions for ocellus

ocellus

noun
ocel·​lus | \ ō-ˈsel-əs How to pronounce ocellus (audio) \
plural ocelli\ -​ˈsel-​ˌī How to pronounce ocellus (audio) , -​(ˌ)ē How to pronounce ocellus (audio) \

Medical Definition of ocellus

: a minute simple eye or eyespot of an invertebrate

Other Words from ocellus

ocellar \ ō-​ˈsel-​ər How to pronounce ocellus (audio) \ adjective

More from Merriam-Webster on ocellus

Britannica.com: Encyclopedia article about ocellus

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