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frac·tion·al in·jec·tion(frak'shŭn-ăl in-jek'shŭn)
The instillation of a pharmacotherapeutic or anesthetic agent in small amounts to improve toleration or benefit.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
Injection of small amounts at a time until the total injection is complete.
See also: injection
Medical Dictionary, © 2009 Farlex and Partners