1. plural of retinal; light-sensitive compounds derived from vitamin A that are essential components of visual pigments in the eye
Usage: biochemistry; technical

Examples

• The researcher studied different retinals found in various animal species.
• Retinals combine with proteins to form rhodopsin in rod cells.
• A deficiency in vitamin A can affect the production of retinals.
• The laboratory analyzed the structure of several retinals under different light conditions.
• Scientists discovered that certain retinals are more sensitive to specific wavelengths of light.
• The conversion of retinals is crucial for the visual process in vertebrates.