instillation

Noun
  1. is a type of: insertion, introduction, intromission - the act of putting one thing into another
    subtypes: infusion - (medicine) the passive introduction of a substance (a fluid or drug or electrolyte) into a vein or between tissues (as by gravitational force)
    same as: instillment, instilment
  2. is a type of: liquid - fluid matter having no fixed shape but a fixed volume

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