alt

adjective

1. high.

noun

2. in alt, in the first octave above the treble staff.

noun Computers.

1. either of two keys on a PC keyboard that is held down while pressing another key, as to perform a specific operation or type a special character.

1. variant of alti- before a vowel: altazimuth.

1. alteration.
2. alternate.
3. altitude.
4. alto.

adjective

1. (esp of vocal music) high in pitch
2. of or relating to the octave commencing with the G above the top line of the treble staff

noun

3. in alt in the octave directly above the treble staff

n.

1. alanine aminotransferase