simple past tense and past participle of unaffect

(theater) Someone who operates a fly system in a theatre.

(countable) An institution where one can place and borrow money and take care of financial affairs. / (countable) A branch office of such an institution.

(metrology) An SI unit of mass equal to 10⁻⁶ grams. Symbol: μg A unit of mass equal to one millionth of a gram, or 0.000 001 grams.