Meaning of TECTONICS in English

TECTONICS

noun plural but singular or plural in construction Date: 1899 geological structural features as a whole, 2. a branch of geology concerned with the structure of the crust of a planet (as earth) or moon and especially with the formation of folds and faults in it, tectonism

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