Meaning of DEFLECTION in English

de ‧ flec ‧ tion /dɪˈflekʃ ə n/ BrE AmE noun [uncountable and countable]

1 . the action of making something change its direction

deflection of

the deflection of the missile away from its target

2 . technical the degree to which the moving part on a measuring instrument moves away from zero

Longman Dictionary of Contemporary English.      Longman - Словарь современного английского языка.