pralltriller
Concise Oxford English Dictionary © 2008 Oxford University Press:
pralltriller /ˈpraltrɪlə/
▶noun Music an ornament consisting of one rapid alternation of the written note with the note immediately above it.
– origin C19: from Ger., from prallen ‘rebound’ + Triller ‘a trill’.
'pralltriller' also found in these Oxford entries:

