overblowing
o ver blow ing |ˌōvərˈblōiNG ˌoʊvərˈbloʊɪŋ | ▶noun a technique for playing a wind instrument so as to produce overtones.
over |blow |ing ▶noun [ mass noun ] a technique for playing high notes on a wind instrument by producing harmonics.
The Wordsmith Dictionary
The Wordsmith Dictionary