You searched for:
“perflations”
The act of blowing air into a cavity or canal: Perflation is necessary to expand the walls of the nose in order to expel any secretions that have collected there.
This entry is located in the following units:
-ation, -ization (-iz[e] + -ation); -isation (British spelling variation)
(page 71)
flat-, flatu-
(page 2)