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Definition of instillation

instillation

/ˌɪn.stɪˈleɪ.ʃən/
in · stil · la · tion

Plural:instillations
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instillation Lexical Profile

instillation Game Scores & Validity

• noun

1

The act or process of gradually but firmly establishing an idea, attitude, or habit in a person's mind.

Example

"The curriculum focuses on the early instillation of critical thinking skills and civic responsibility."


2

The administration of a liquid into a body cavity or onto a surface drop by drop, especially in medical treatment.

Example

"The ophthalmologist recommended the daily instillation of lubricating eye drops to relieve dryness."

Synonyms
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Antonyms
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Word Nuance & Usage

Do not confuse 'instillation' (from 'instill', meaning the gradual introduction of ideas or the drop-by-drop administration of a liquid) with 'installation' (from 'install', meaning the placement of equipment or appointment to an office).

• Rhymes for instillation

Word Origin & Etymology

Borrowed in the late 14th century from Latin instillatio, a noun of action from instillare ('to put in by drops'), formed from in- ('into') and stillare ('to drip'), from stilla ('a drop').

Cite this Entry


Wordmom. (2026). Definition of Instillation. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/instillation
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