acciaccatura
Concise Oxford English Dictionary © 2008 Oxford University Press:
acciaccatura /əˌtʃakəˈtjʊərə/
▶noun (pl. acciaccaturas or acciaccature) Music a grace note performed as quickly as possible before an essential note of a melody.
– origin Ital., from acciaccare ‘to crush’.
'acciaccatura' also found in these Oxford entries:

