Adenoma – Definition & Meaning

Adenoma is a medical term that refers to a benign tumor that develops from glandular tissue. These tumors can occur in various parts of the body, including the colon, pituitary gland, and adrenal gland. In this article, we will explore the definition and meaning of adenoma, its origin, associations, synonyms, and antonyms.


Adenoma is defined as a benign tumor that arises from glandular tissue. These tumors can develop in various organs, including the colon, liver, and breast. Adenomas are usually slow-growing and do not spread to other parts of the body.


The word adenoma comes from the Greek words “adeno” meaning gland and “oma” meaning tumor. The term was first used in the medical literature in the late 19th century to describe a type of glandular tumor.

Meaning in different dictionaries

According to the Merriam-Webster dictionary, adenoma is “a benign tumor of glandular origin that is made up of epithelial tissue and has a glandular structure.” The Oxford English Dictionary defines adenoma as “a benign tumor of glandular tissue.”


Adenomas are commonly associated with certain medical conditions, including familial adenomatous polyposis (FAP), a rare genetic disorder that causes the development of numerous adenomas in the colon. Adenomas are also associated with an increased risk of developing colorectal cancer.


Some synonyms of adenoma include glandular tumor, benign neoplasm, and adenocarcinoma.


There are no direct antonyms of adenoma, as it is a specific medical term that refers to a benign glandular tumor.

The same root words

Other medical terms that share the root words “adeno” and “oma” include adenocarcinoma, adenomyoma, and adenopathy.

Example Sentences

  1. The patient was diagnosed with a pituitary adenoma, which was causing his hormonal imbalance.
  2. The colonoscopy revealed several adenomas in the patient’s colon, which were removed during the procedure.
  3. The doctor explained that the liver adenoma was benign and did not require immediate treatment.
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