whole step
noun
,
Music.
1.
an interval of two semitones, as A-B or B-C♯; a major second.
Also called
wholetone
.
Origin
1895-1900
British Dictionary definitions for
whole step
whole tone
noun
1.
an interval of two semitones; a frequency difference of 200 cents in the system of equal temperament
Often shortened to
tone