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Dictionary · Word part

auto-

A word beginning that means self or by itself.

AW-toh prefix

What it means

The beginning of words about the self. An autoimmune disease is one in which the immune system attacks the body's own tissues; autonomyaw-TON-uh-meeA person's right to make their own choices about their body and their care.Full entry is self-rule; the autonomic nervous systemaw-tuh-NOM-ik NUR-vus SIS-tumThe part of the nervous system that controls body functions without conscious thought, such as heart rate, breathing and digestion.auto- selfnom/o law, control-ic relating toFull entry runs on its own; an autograft uses the person's own tissue; an autopsy is an exam of a body after death.

At a glance

Also writtenaut/o, aut-

Related terms

autonomic nervous system

The part of the nervous system that controls body functions without conscious thought, such as heart rate, breathing and digestion.

autonomy

A person's right to make their own choices about their body and their care.

immun/o

A word root that means immune, or protection from disease.

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