First Known Use: 15th century
Dictionary
tumor
noun tu·mor \ˈtü-mər, ˈtyü-\
: a mass of tissue found in or on the body that is made up of abnormal cells
Full Definition of TUMOR
1
: a swollen or distended part
2
: 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
— tu·mor·al \-mə-rəl\ adjective
— tu·mor·like \-mər-ˌlīk\ adjective
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Origin of TUMOR
Middle English tumour, from Latin tumor, from tumēre
Related to TUMOR
- Synonyms
- excrescence, excrescency, lump, neoplasm, growth
Other Medicine Terms
TUMOR Defined for Kids
tumor
noun tu·mor \ˈtü-mər, ˈtyü-\
Definition of TUMOR for Kids
: an abnormal growth of body tissue
Medical Dictionary
tumor
noun tu·mor
Medical Definition of TUMOR
—tu·mor·like \-ˌlīk\ adjective
Variants of TUMOR
tu·mor or chiefly British tu·mour \ˈt(y)ü-mər\
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