Meaning of FUNCTIONAL in English

adjective Date: 1631 1. of, connected with, or being a function, affecting physiological or psychological functions but not organic structure , used to contribute to the development or maintenance of a larger whole , performing or able to perform a regular function, ~ly adverb

Merriam Webster. Explanatory English dictionary Merriam Webster.      Толковый словарь английского языка Мерриам-Уэбстер.