extraretinal

extraretinal

English

Etymology

Etymology tree
Proto-Indo-European *h₁éǵʰ
Proto-Indo-European *-s
Proto-Indo-European *h₁éǵʰs
Proto-Indo-European *-teros
Proto-Indo-European *h₁eǵʰsteros
Proto-Italic *eksteros
Latin exter
Latin extrā
English extra-
English retina
Proto-Indo-European *h₂el-der.?
Proto-Italic *-ālis
Latin -ālisbor.
Old French -albor.
▲
Latin -ālis
Old French -elbor.
▲
Latin -ālisbor.
Middle English -al
English -al
English retinal
English extraretinal

    From extra- + retinal.

    Pronunciation

    • Rhymes: -ɛtɪnəl

    Adjective

    extraretinal (not comparable)

    1. Outside of the retina.

    Usage notes

    • Used of biological light detection not involving the eye
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