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Dictionary · Word part

psych/o

A word root that means mind.

SY-koh root

What it means

The root in words about the mind, thoughts, feelings and behavior. Psychology is the study of the mind, psychiatry treats mental illness, psychosis is a loss of touch with reality, and a psychotropic drug acts on the mind. The p is silent.

Remember it

The p in psych/o is silent, just as thoughts are.

At a glance

Also writtenpsych-, psycho-

Related terms

-osis

A word ending that means an abnormal condition or process, or an increase.

-logy

A word ending that means the study of something.

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