instillation

US: (in′stə lā′shən)

WordReference Random House Unabridged Dictionary of American English © 2026

in•stil•la•tion  (in′stə lā′shən), n. 

1. the act of instilling.
2. something instilled.

• Latin instillātiōn- (stem of instillātiō), equivalent. to instillāt(us) past participle of instillāre to instill + -iōn- -ion
• 1530–40

WordReference Random House Unabridged Dictionary of American English © 2026

in•stil  (in stil′), v.t., -stilled, -stil•ling. 

1. instill.

Collins Concise English Dictionary © HarperCollins Publishers::

instil, instill / ɪnˈstɪl/ verb ( -stils, -stills, -stilling, -stilled)(transitive)

1. to introduce gradually; implant or infuse
2. to pour in or inject in drops

Etymology: 16th Century: from Latin instillāre to pour in a drop at a time, from stillāre to drip

inˈstiller noun

inˈstilment, inˈstillment, ˌinstilˈlation noun