adenoma
noun
ad·e·no·ma
ˌa-də-ˈnō-mə 
plural adenomas also adenomata
ˌa-də-ˈnō-mə-tə
: a benign tumor of a glandular structure or of glandular origin
Examples of adenoma in a Sentence
Recent Examples on the Web
Common types of adrenal tumors include adrenal adenomas (benign), adrenal carcinomas (malignant and prone to spreading) peochromocrytomas, and paragangliomas.
—
Maria Azzurra Volpe, MSNBC Newsweek, 18 June 2025
Women who take oral contraceptives have a similar risk for all three types of hepatic adenomas.
—Robert Burakoff, Verywell Health, 1 Nov. 2024
This minimally invasive technique involves removing the adenoma through small incisions.
—Robert Burakoff, Verywell Health, 1 Nov. 2024
Tubular adenomas exhibit moderate-grade dysplasia and are least likely to become malignant.22
Tubulovillous adenomas: These share features of tubular and villous adenomas.
—James Myhre & Dennis Sifris, Md, Verywell Health, 3 Sep. 2024
These adenomas are often found on the front, top, or base of the inner bladder.23
Villous adenomas: This is the most common type that tends to be larger and have severe degrees of dysplasia.
—James Myhre & Dennis Sifris, Md, Verywell Health, 3 Sep. 2024
In the clinical trial, the Shield test detected about 13% of advanced adenomas.
—Claire Bugos, Verywell Health, 2 Aug. 2024
Tumor According to medical experts, the most common type of tumor in breastfeeding people is a lactating adenoma.
—Donna Murray, Rn, Parents, 29 July 2024
Advanced adenomas are defined as having at least one of these criteria:9
At least 10 mm in size
Villous architecture of at least 25%
High-grade dysplasia
Though polyps 10 cm or larger in size carry a higher risk of cancer, most adenomas (60% to 75%) detected with colonoscopy are smaller than 10 cm.
—Heather Jones, Verywell Health, 12 July 2024
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Maria Azzurra Volpe, MSNBC Newsweek, 18 June 2025
Women who take oral contraceptives have a similar risk for all three types of hepatic adenomas.
—Robert Burakoff, Verywell Health, 1 Nov. 2024
This minimally invasive technique involves removing the adenoma through small incisions.
—Robert Burakoff, Verywell Health, 1 Nov. 2024
Tubular adenomas exhibit moderate-grade dysplasia and are least likely to become malignant.22
Tubulovillous adenomas: These share features of tubular and villous adenomas.
—James Myhre & Dennis Sifris, Md, Verywell Health, 3 Sep. 2024
These adenomas are often found on the front, top, or base of the inner bladder.23
Villous adenomas: This is the most common type that tends to be larger and have severe degrees of dysplasia.
—James Myhre & Dennis Sifris, Md, Verywell Health, 3 Sep. 2024
In the clinical trial, the Shield test detected about 13% of advanced adenomas.
—Claire Bugos, Verywell Health, 2 Aug. 2024
Tumor According to medical experts, the most common type of tumor in breastfeeding people is a lactating adenoma.
—Donna Murray, Rn, Parents, 29 July 2024
Advanced adenomas are defined as having at least one of these criteria:9
At least 10 mm in size
Villous architecture of at least 25%
High-grade dysplasia
Though polyps 10 cm or larger in size carry a higher risk of cancer, most adenomas (60% to 75%) detected with colonoscopy are smaller than 10 cm.
—Heather Jones, Verywell Health, 12 July 2024
Cite this Entry
“Adenoma.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/adenoma. Accessed 25 Jun. 2025.
Copy CitationMedical Definition
adenoma
noun
ad·e·no·ma
ˌad-ᵊn-ˈō-mə
plural adenomas also adenomata
-mət-ə
: a benign tumor of a glandular structure or of glandular origin
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