Valsalva manoeuvre
Concise Oxford English Dictionary © 2008 Oxford University Press:
Valsalva manoeuvre /valˈsalvə/
▶noun Medicine the action of attempting to exhale with the nostrils and mouth, or the glottis, closed, serving to increase pressure in the middle ear and the chest or equalize pressure in the ears.
– origin C19: named after the Italian anatomist Antonio M. Valsalva.
'Valsalva manoeuvre' also found in these Oxford entries:
