acciaccatura

Etymology
Borrowed from, from the verb.

Noun

 * 1)  A short grace note (theoretically taking no time at all), occurring on the beat occupied by the main note to which it is prefixed, one scale-step higher or lower than that main note. (Sometimes equivalent, therefore, to a short appoggiatura, but in Baroque music interpreted differently and more strictly.) Written as a note lighter in appearance, typically a quaver (eighth note), with an oblique stroke through the stem.

Translations

 * Italian:
 * Portuguese: acciaccatura

Etymology
.

Noun

 * 1)   short grace note occurring on the beat occupied by the main note