Definitions for Tumor

This page provides all possible meanings and translations of the word Tumor

Princeton's WordNet

  1. tumor, tumour, neoplasm(noun)

    an abnormal new mass of tissue that serves no purpose


  1. tumor(Noun)

    An abnormal growth; differential diagnosis includes abscess, metaplasia, and neoplasia.

  2. Origin: From tumour, from tumor, from tumeo. English usage attested since the 16th century.

Webster Dictionary

  1. Tumor(noun)

    a morbid swelling, prominence, or growth, on any part of the body; especially, a growth produced by deposition of new tissue; a neoplasm

  2. Tumor(noun)

    affected pomp; bombast; swelling words or expressions; false magnificence or sublimity


  1. Tumor

    A tumor or tumour is commonly used as a synonym for a neoplasm that appears enlarged in size. Tumor is not synonymous with cancer. While cancer is by definition malignant, a tumor can be benign, pre-malignant, or malignant, or can represent a lesion without any cancerous potential whatsoever. The terms "mass" and "nodule" are often used synonymously with "tumor". Generally speaking, however, the term "tumor" is used generically, without reference to the physical size of the lesion. More specifically, the term "mass" is often used when the lesion has a maximal diameter of at least 20 millimeters in greatest direction, while the term "nodule" is usually used when the size of the lesion is less than 20 mm in its greatest dimension.

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