Clogged Pore or Hair Follicle
This page is the CodyCross answer for the clue below from Train Travel, Group 714, Puzzle 4 (Maglev Technology).
Question is: Clogged Pore or Hair Follicle
and the answer is: BLACKHEAD
Word Meaning:
BLACKHEAD — (countable, medicine) A type of comedo, a skin blemish, a type of acne vulgaris, where a pore becomes clogged with a dark, hard, cheesy keratin-filled substance forming a hard black "head" on the skin's surface.
Definitions from Wiktionary.