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
Doctors found two tumors, one stretching across Audrey's chest and down her torso, Cox said.
Only two studies could be reproduced; one result was negative, and two studies were ruled inconclusive because of problems with mouse tumor models.
According to former Mets teammate Turk Wendell, Young had been suffering from an inoperable brain tumor.
The morning after the election, in November, her first appointment was with a little girl who had a brain tumor.
Later, Miller helped open tech company Microsoft's modelling shop, Ross says, before succumbing to a brain tumor around 2000.
A CT scan ordered up at a local hospital’s emergency room revealed a kidney tumor.
Relay unites the community to fight back against cancer, added Breck, who lost her mother to a cancerous brain tumor.
Strong chemo and radiation put the tumor in remission, but life-threatening cases of swine flu and pneumonia caused his body to reject his lungs, leading to a second transplant.
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 centurySee Words from the same year
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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