adjective Date: 1932 orthogonal with the integral of the square of each function over a specified interval equal to one, being or composed of orthogonal elements of unit length
ORTHONORMAL
Meaning of ORTHONORMAL in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012