retinol

noun

ret·​i·​nol ˈre-tə-ˌnȯl 

-ˌnōl

: the chief and typical vitamin A C₂₀H₂₉OH that is a highly unsaturated alicyclic alcohol used in various forms in medicine and nutrition

Examples of retinol in a Sentence

Recent Examples on the Web

For example, if your concern is fine lines and wrinkles, an anti-aging facial may focus on collagen stimulation using retinol, micro-current, and other tightening tools. —Essence, 8 Oct. 2025

Those interested in the effects of retinol without the irritation will appreciate Iope's formula. —Conçetta Ciarlo, Vogue, 8 Oct. 2025

The formula pairs pure retinol with hyaluronic acid and glycerin to keep skin hydrated, soft, and comfortable while targeting fine lines, uneven texture, and dullness. —Christa Joanna Lee, Allure, 1 Oct. 2025

Double-cleanse with Aprilskin cleansing balm, Eminence daily exfoliating cleanser, Thayer’s toner, Glow Recipe blackberry retinol, and Farmacy honey halo moisturizer. —R29 Team, Refinery29, 26 Sep. 2025

Word History

Etymology

retin- + -ol entry 1; from its being the source of retinal

First Known Use

1960, in the meaning defined above

Rhymes for retinol

• aerosol
• alcohol
• arbitral
• basketball
• butanol
• cannonball
• carbinol
• catarrhal
• cortisol
• ethanol
• fireball
• gasohol

Kids Definition

retinol

noun

ret·​i·​nol ˈret-ᵊn-ˌȯl 

-ˌōl

: the most common form of vitamin A

Medical Definition

retinol

noun

ret·​i·​nol ˈret-ᵊn-ˌȯl  -ˌōl 

: vitamin a sense a