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Medical Terminology / Unit 3   MedTerm 0158 short lesson, about 20 seconds

a- and an-: Without

Captions available

The idea

The prefixes a and an mean without or absence of, with an used before a vowel.

In practice

Anuria is the absence of urine production.

Where people slip

Without is absolute. A prefix meaning difficult or abnormal is a different claim.

Your place on the trail

Every lesson rests on earlier ones and opens later ones. Tap any to jump.

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