Retinoic acid

Retinoic acid is a noun for a derivative of vitamin A. That is the definition and it's also a sentence for retinoic.

Vitamin A1 acid which is used topically to treat acne

Blindness develops as retinoic acid cannot be converted to retinal, which participates in vision.

Saffron may not only be effective in treating certain types of cancer, but significantly less likely to cause birth defects if given to pregnant women than all-trans-retinoic acid (ATRA).