Tumor definition

to͝omər, tyo͝o-
tumors
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An abnormal growth of tissue resulting from uncontrolled, progressive multiplication of cells and serving no physiological function; a neoplasm.
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A swollen part; a swelling.

A plant tumor.

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(obs.) High-flown language; bombast.
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A swelling on some part of the body.
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A mass of new tissue growth independent of its surrounding structures, having no physiological function; neoplasm: such tumors are classified as benign or malignant.
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An abnormal growth of tissue resulting from uncontrolled, progressive multiplication of cells and serving no physiological function; a neoplasm.
noun
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A swollen part; a swelling.

A plant tumor.

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(oncology, pathology) An abnormal growth; differential diagnosis includes abscess, metaplasia, and neoplasia.
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Other Word Forms

Noun

Singular:
tumor
Plural:
tumors

Origin of tumor

  • Middle English tumour from Latin tumor from tumēre to swell teuə- in Indo-European roots

    From American Heritage Dictionary of the English Language, 5th Edition

  • From Old French tumour, from Latin tumor (“swelling"), from tumeō (“I bulge, swell"). English usage attested since the 16th century.

    From Wiktionary

Tumor Sentence Examples

  • I made him a deal to take the tumor out.

  • Your tumor was operable when I met you and for the entirety of first year.

  • In it was her bucket list, a list of things she hoped to do before she died from the terminal brain tumor she no longer possessed.

  • It was hard to imagine she had a tumor in her brain the half the size of her fist.

  • The knowledge made her want to scream, knowing she'd spent years blindly letting him talk to her like this and encourage her with pretty words, while he ensured the tumor in her head killed her.

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Words near tumor in the Dictionary