Manipulation of One's Thoughts; Cleansing
This page is the CodyCross answer for the clue below from Inventions, Group 54, Puzzle 3.
Question is: Manipulation of One's Thoughts; Cleansing
and the answer is: BRAINWASH
Word Meaning:
BRAINWASH — A distorting effect upon one's memory, belief, or ideas, as by propaganda.
Definitions from Wiktionary.