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electr/o

Word root Medical Terminology

Electricity or electrical activity.

Example: electrocardiogram (record of the heart's electrical activity)

Sources

Appendix A: Word Parts and What They Mean · MedlinePlus, U.S. National Library of Medicine
Understanding Medical Words: A Tutorial · U.S. National Library of Medicine (MedlinePlus)

Terms built with electr/o

electrocardiogramA tracing of the heart's electrical activity recorded from electrodes on the skin.
electrodeA sensor placed on the skin that picks up the heart's electrical signals for the EKG.
electrolytesIons dissolved in body fluids that support most body functions and help maintain homeostasis.
isoelectric lineThe flat baseline on an EKG when no electrical activity is recorded.

Related terms

dactyl/oFinger or toe.
dent/i, odont/oTooth.
derm/o, dermat/oSkin.
duoden/oDuodenum, the first part of the small intestine.
encephal/oBrain.
enter/oIntestine, usually the small intestine.
erythr/oRed.
esophag/oEsophagus, the tube from the throat to the stomach.

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