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
McCain underwent a minor procedure last week to remove a blood clot from above his left eye, which lab results later revealed was associated with a brain tumor known as a glioblastoma.
Senator John McCain has been diagnosed with a brain tumor, his office said Wednesday.
Christine’s husband had insurance that allowed her to undergo radiation treatment in Casablanca after her tumor was successfully removed by surgery in Senegal in November.
For girls, pyometra (uterine infections) and mammary tumors are the biggest risk.
Which is part of the reason Warner felt comfortable sharing video of her open brain surgery, which removed 95% of the tumor.
Cindy was looking her over and looking for all the signs that this is Mo — a stitch in her right eye, her fatty tumor.
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.
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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