I. ˈvälˌplān noun
Etymology: French vol plané, from vol flight (from voler to fly) + plané, past participle of planer to glide, soar — more at plane
: a glide in an airplane
II. intransitive verb
1.
a. : to glide in an airplane
b. : glide 3
2. : to sail or coast through the air in the manner of an airplane that glides
these small creatures volplane from tree to tree with the assistance of a membrane joining fore and hind legs — R.T.Littlejohns