• WordNet 3.6
    • n applier a device for applying a substance
    • n applier a person who requests or seeks something such as assistance or employment or admission
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Webster's Revised Unabridged Dictionary
    • n Applier He who, or that which, applies.
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Century Dictionary and Cyclopedia
    • n applier One who applies.
    • n applier A dental instrument for placing a piece of floss-silk between teeth.
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In literature:

I told him the reflection both of the poet and applier was much too general, and made with more ill-nature than good manners.
"Clarissa, Volume 7" by Samuel Richardson
These are a Jury of special Law-appliers.
"The Trial of Theodore Parker" by Theodore Parker

In news:

It consists of the Quick-Close Suture Applier and the Quick-Ti Cinch Applier.