from The American Heritage® Dictionary of the English Language, 4th Edition
- adj. Tending to produce or aggravate acne.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. Tending to produce acne, i.e. comedones
- n. A substance that tends to produce acne, such as by clogging pores on the skin
comedo + -genic.(American Heritage® Dictionary of the English Language, Fourth Edition)
comedo + -genic (Wiktionary)