Origin of instillation
Examples from the Web for instillation
They are easily removed with a spud or needle, after the instillation of a drop of 4% cocaine solution.
The occasion was the instillation of life into the legendary monster.In Eastern Seas|J. J. Smith
Instil a few drops of a sterile solution of cocaine, and repeat the instillation in two minutes.The Elements of Bacteriological Technique|John William Henry Eyre
If the object be a living insect it should be killed at once by the instillation of warm oil, rectified spirit, or chloroform.
1540s, from Latin instillationem (nominative instillatio) "a dropping in," noun of action from past participle stem of instillare (see instill).