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Gastr- is a combining form used like a prefix meaning “stomach.” It is often used in medical terms, particularly in anatomy and pathology.

Gastr- comes from the Greek ��������ḗr, meaning “stomach” or “belly.”

Gastr- is a variant of gastro-, which loses its -o– when combined with words or word elements beginning with vowels.

Want to know more? Read our �y��vlogs That Use gastro- article.

One word you may have encountered that uses the combining form gastr- is gastrectomy, “a partial or total excision of the stomach.”

We know gastr- means “stomach.” The -ectomy portion of the word might also be familiar. It means “excision.” Gastrectomy literally translates to “stomach excision.”

What are some words that use the combining form gastr-?

• gastralgia
• gastradenitis
• gastrectasis
• gastritis
• gastrinoma

What are some other forms that gastr- may be commonly confused with?

• astr-

The combining part -itis is often used in medical terms to denote inflammation of an organ. With this in mind, what is the condition of gastritis?