superoctave

English

Etymology

super- +‎ octave

Noun

superoctave (plural superoctaves)

1. (music) The octave above another.

   Succeeding superoctaves are pitches found at frequencies four, eight, sixteen times, and so on, of the fundamental frequency.

2. (music) A coupler in the organ by means of which is sounded an octave higher than the one struck.
3. (music) An organ stop two octaves above the principal.