昇しょう冪べきしょうべきMeanings1nounascending powersmathematicsMathematics term for arranging a polynomial in order of increasing exponents. Antonym: 降冪 (descending powers).See also: 降冪多た項こう式しきを昇しょう冪べきの順じゅんに整せい理りする。Arrange the polynomial in ascending powers.