Acciaccatura
Pronunciation : Ac*ciac`ca*tu"ra
Part of Speech : n.
Etymology : [It., from acciaccare to crush.] (Mus.)
Definition : Defn: A short grace note, one semitone below the note to which it is prefixed; -- used especially in organ music. Now used as equivalent to the short appoggiatura.
Source : Webster's Unabridged Dictionary, 1913