noun plural but usually singular in construction Date: circa 1890 a field of study concerned with the formal structure and properties (as the consistency and completeness of axioms) of mathematical systems, metamathematical adjective
METAMATHEMATICS
Meaning of METAMATHEMATICS in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012