1

retinal

adjective ret·i·nal \ ˈre-tə-nəl , ˈret-nəl \
Updated on: 8 Dec 2017

Definition of retinal

: of, relating to, involving, or being a retina

Recent Examples of retinal from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'retinal.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of retinal

1798


2

retinal

noun ret·i·nal \ ˈre-tə-ˌnal , -ˌnȯl \

Definition of retinal

: a yellowish to orange aldehyde C20H28O derived from vitamin A that in combination with proteins forms the visual pigments of the retinal rods and cones

Recent Examples of retinal from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'retinal.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Origin and Etymology of retinal

retin- + 3-al



Medical Dictionary

1

retinal

adjective ret·i·nal \ ˈret-ᵊn-əl, ˈret-nəl \

medical Definition of retinal

: of, relating to, involving, or being a retina
  • a retinal examination
  • retinal rods

2

retinal

noun ret·i·nal \ ˈret-ᵊn-ˌal , -ˌȯl \

medical Definition of retinal

: a yellowish to orange aldehyde C20H28O derived from vitamin A that in combination with proteins forms the visual pigments of the retinal rods and cones called also retinene, retinene1, vitamin A aldehyde

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