salicylic acid

noun

sal·​i·​cyl·​ic acid ˌsa-lə-ˈsi-lik- 

: a crystalline phenolic acid C₇H₆O₃ that is used medicinally especially as a skin exfoliant and in the form of salts and other derivatives as an analgesic and antipyretic compare aspirin

Examples of salicylic acid in a Sentence

Recent Examples on the Web

This sets the foundation for the rest of your breakout-fighting products—like clarifying toners, salicylic acid serums, and lightweight moisturizers—to work more efficiently. —Sarah Felbin, Allure, 20 May 2026

Look for over-the-counter body-care products with salicylic acid or glycolic acid, which will help loosen the hairs. —Ariana Yaptangco, Glamour, 18 May 2026

Optional: use a low-strength active (like salicylic acid or hypochlorous acid) sparingly and only if well tolerated. Reapply lightweight moisturizer to support overnight barrier repair. —Lauryn Higgins, Flow Space, 18 May 2026

These can include retinoids, AHAs (such as glycolic and lactic acids), BHAs (like salicylic acid), and mechanical exfoliants. —Giulia Lenzi, Vogue, 14 May 2026

Word History

Etymology

French salicylique, from salicyle, the group HOC₆H₄CO, from salicine salicin + -yle -yl

First Known Use

1840, in the meaning defined above

Rhymes for salicylic acid

• antacid
• placid

Kids Definition

salicylic acid

noun

sal·​i·​cyl·​ic acid ˌsal-ə-ˌsil-ik- 

: a weak acid used especially in the form of salts to relieve pain and fever

Medical Definition

salicylic acid

noun

sal·​i·​cyl·​ic acid ˌsal-ə-ˌsil-ik- 

: a crystalline phenolic acid C₇H₆O₃ that is the ortho form of hydroxybenzoic acid and is used especially in making pharmaceuticals and dyes, as an antiseptic and disinfectant especially in treating skin diseases, as a keratolytic agent for skin exfoliation, and in the form of salts and other derivatives as an analgesic and antipyretic and in the treatment of rheumatism see aspirin