Cleanliness, State of Sterility
This page is the CodyCross answer for the clue below from The 80s, Group 799, Puzzle 4 (Marty Mcfly).
Question is: Cleanliness, State of Sterility
and the answer is: HYGIENE
Word Meaning:
HYGIENE — The science of health, its promotion and preservation.
Definitions from Wiktionary.