instill

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in·still

(ĭn-stĭl′)
v.
To pour in drop by drop.

in′stil·la′tion (ĭn′stə-lā′shən) n.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

instillation

(ĭn″stĭl-ā′shŭn) [L. in, into, + stillare, to drop]
Slowly pouring or dropping a liquid into a cavity or onto a surface.
instill
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