semitone
n. (இசை.) அரைச்சுர அலகு, ஐரோப்பிய இசையில் வரும் மிகச்சிறு சுர இடைவௌத.
Sem"i*tone, n. Etym: [Pref. semi- + tone. CF. Hemitone.] (Mus.) Defn: Half a tone; -- the name commonly applied to the smaller intervals of the diatonic scale. Note: There is an impropriety in the use of this word, and half step is now preferred. See Tone. J. S. Dwight.