Esophagogastroduodenoscopy (EGD)



Let’s be honest, learning the definition and how to spell long medical terms such as esophagogastroduodenoscopy (e-sof-a-go-gas-tro-du-od-e-NOS-ko-pe) can be challenging.

Fortunately, it is built from Greek and Latin word parts so it can be more easily learned than medical terms NOT built from word parts.

Let’s take a look.

Divide the term into word parts


esophag – word root for esophagus

gastr  word root for stomach

duoden –  word root for duodenum 

-scopy – suffix for visual examination

o – combining vowel used between word parts to ease pronunciation.

O is most often used as the combining vowel, so if you are stumped as to whether to use an o or between esophag and gastr, go for the o.

Use the word parts to help with spelling 

Write each word part
esophag  gastr  duoden  scopy

Add  combining vowels
esophag o gastr o duoden o scopy

Apply the definition of word parts to find the definition


Begin with the meaning of the suffix –scopy, then move to the beginning of the term.

Visual examination of the esophagus, stomach and duodenum is the correct definition. It is an endoscopic diagnostic procedure performed with an endoscope.

At this time, you may be asking, “why not just speak medical language in plain English?” and that is a good question.  My best answer is that using medical language lends itself to clear, concise, communication, plus one word can be used instead of eight as we see in the term esophagogastroduodenoscopy.

Consider learning other medical terms by dividing them into word parts, as we have done here.


Read Other Featured Terms Posts >


Learn More About EGD

Check out Endoscopic Surgery.

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