HALF STEP
Meaning of HALF STEP in English
1. Music. semitone.
2. Mil. a step 15 in. (38 cm) long in quick time and 18 in. (46 cm) long in double time.
[ 1900-05 ]
Random House Webster's Unabridged English dictionary.
Полный английский словарь Вебстер - Random House .
2012