Word Parts Beginning With A

30 word parts in the Medical Terminology guide begin with the letter A — prefixes, word roots and suffixes together. Every entry links to its own page with worked examples.

A B C D E F G H I J K L M N O P Q R S T U V X Z

Word part	Type	Meaning
a-	Prefix	without, not, absence of
ab-	Prefix	away from
abdomin	Word root	abdomen
-acusis	Suffix	hearing condition
ad-	Prefix	toward, near
aden	Word root	gland
adip	Word root	fat
adrenal	Word root	adrenal gland
-agra	Suffix	severe pain; gouty pain
alges	Word root	sensitivity to pain
-algia	Suffix	pain
allo-	Prefix	other, different
ambi-	Prefix	both, both sides
amphi-	Prefix	both sides, double, around
an-	Prefix	without, not, absence of (used before a vowel)
ana-	Prefix	up, back, again, upward
anatom	Word root	structure of the body, dissection
angi	Word root	vessel
aniso-	Prefix	unequal, dissimilar
ante-	Prefix	before, forward, in front of
anti-	Prefix	against, opposite
aort	Word root	aorta
apo-	Prefix	away from, separate, off
arteri	Word root	artery
arthr	Word root	joint
-asthenia	Suffix	weakness; lack of strength
atri	Word root	atrium
-atrophy	Suffix	wasting away; decrease in size
audi	Word root	hearing, sound
auto-	Prefix	self

Please note: This section teaches the language of medicine — what word parts mean and how terms are built. It is an educational reference, not medical advice. For the meaning of a word in your own medical record, ask the clinician who wrote it.

Word Parts Beginning With A

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