oil retention enema

oil re·ten·tion en·e·ma

a rectal injection of mineral oil, introduced at low pressure and retained for several hours before expelling, to soften feces.

oil re·ten·tion en·e·ma

(oyl rĕ-ten'shŭn en'ĕ-mă)

An enema containing approximately 250 mL of an oil-based fluid, prescribed to soften a hardened fecal mass and ease its passage through the anal canal, after being retained by the patient for at least 30 minutes.
Synonym(s): emollient enema, lubricating enema.