noun
epi
noun
1
Informal shorthand for epinephrine (adrenaline), or for an injector device pre-filled with it and used to treat severe allergic reactions.
"The nurse grabbed the epi and administered it the moment his throat began to swell."
"Always carry an epi if you have a known nut allergy."
How to Use Epi
Learner’s notesIn plain EnglishA casual, shortened way to say "epinephrine" or "EpiPen," used especially in emergency and medical contexts.
When to use it
Informal/clinical slang rather than a formal medical term.
Common pairings
epi pen
give the epi
carry an epi
Word Forms
epis plural, Epis plural
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The nurse grabbed the _____ and administered it the moment his throat began to swell.
Etymology
A clipped form of "epinephrine," itself from Greek epi- ("upon") + nephros ("kidney"), referring to the adrenal glands that produce the hormone.