Definition of tumor
1 : an abnormal benign or malignant new growth of tissue that possesses no physiological function and arises from uncontrolled usually rapid cellular proliferation —called also neoplasm
2 : a swollen or distended part … houses that bulged with the tumors and warts of … ornamental architecture … — W. A. White
tumoralplay \-mə-rəl\ adjective
tumorlikeplay \-mər-ˌlīk\ adjective
Examples of tumor in a Sentence
the scan showed a small tumor in her abdomen
Recent Examples of tumor from the Web
But after an ultrasound revealed a tumor, Thompson underwent a double-mastectomy, followed by chemotherapy.
James McBride, the 33-year-old Loomis armored truck employee killed Wednesday during an apparent robbery of the truck outside Mid-City bank, overcame a brain tumor before he was gunned down on the job, WVUE Fox8 reports.
However, a second tumor was found in 2015, shortly after Seich and his family moved to Roseville.
The women in the study all had breast tumors that had not yet spread to distant sites in the body.
UC San Diego has recruited Dr. Jeremy Rich, a renowned Cleveland Clinic physician-scientist who grapples with the notoriously difficult problem of understanding and treating brain tumors.
In April, nearly four months later, his tumor has shrunk and his weight has gone up.
Bristol had a brain tumor removed about a month before the Owls lost 3-0 Wahluke in the 2010 final.
Doctors removed her uterus, her ovaries, appendix, a foot of her colon and several liters of malignant fluid to eradicate a series of tumors.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'tumor'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
Origin and Etymology of tumor
Middle English tumour, from Latin tumor, from tumēre
First Known Use: 15th century
TUMOR Defined for English Language Learners
Definition of tumor for English Language Learners
: a mass of tissue found in or on the body that is made up of abnormal cells
TUMOR Defined for Kids
Definition of tumor for Students
: an abnormal growth of body tissue
Medical Definition of tumor
Seen and Heard
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