noun
tach
tach
noun
1
Informal short form of "tachycardia," an abnormally fast heart rate.
"The paramedic noted the patient was in tach on arrival."
How to Use Tach
Learner’s notesIn plain EnglishMedical shorthand for a racing heart rate.
When to use it
Used mainly in clinical slang among healthcare workers.
Easily confused with
tachometer
Word Forms
taches plural
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The paramedic noted the patient was in _____ on arrival.
Etymology
A clipped form of tachycardia.