octavate

To sound one octave higher or lower.

The string, originally divided, will continue for some time to “octavate”.

Adolphe Sax, when he invented the saxophone, had at first only in mind the object of improving the clarinet by permitting it to ‘octavate.’

To sound one octave higher or lower.

Ability to ornament, octavate, play chords and do some improvising.

He varies and octavates, leaving Bach listeners thunderstruck.

To sound one octave higher or lower.

A 12-string doubles the octaves of only the lower four strings…. A doubled, capoed guitar “octavates up” the top two strings.

To convert (the expression of a number) from denary to octal notation.

To octavate the number one hundred the reasoning is as follows. The square of eight goes into one hundred once with remainder thirty-six. This remainder contains eight to the first power four times with remainder four. Hence to express one hundred to the base 8 we write the digits 144 which in somewhat longer form may be put as 100 = 1×8² + 4×8 + 4.

octave (transfiguratively)

There is an octavate of odours as well as octavates of notes in music. Like the keys of instruments, certain odours coincide or blend.