'Tumor' definitions:

Definition of 'tumor'

(from WordNet)
noun
An abnormal new mass of tissue that serves no purpose [syn: tumor, tumour, neoplasm]

Definition of 'Tumor'

From: GCIDE
  • Tumor \Tu"mor\ (t[=u]"m[~e]r), n. [L., fr. tumere to swell: cf. F. tume['u]r. See Tumid.]
  • 1. (Med.) A morbid swelling, prominence, or growth, on any part of the body; especially, a growth produced by deposition of new tissue; a neoplasm. [1913 Webster]
  • 2. Affected pomp; bombast; swelling words or expressions; false magnificence or sublimity. [R.] [1913 Webster]
  • Better, however, to be a flippant, than, by a revolting form of tumor and perplexity, to lead men into habits of intellect such as result from the modern vice of English style. --De Quincey. [1913 Webster]
  • Encysted tumor, a tumor which is inclosed in a membrane called a cyst, connected with the surrounding parts by the neighboring cellular substance.
  • Fatty tumor. See under Fatty.
  • Innocent tumor, or Benign tumor, one which does not of itself threaten life, and does not usually tend to recur after extirpation; a tumor which has not metastesized.
  • Malignant tumor, a tumor which tends continually to spread, to become generalized in different parts of the body, and to recur after extirpation, and which, if left to itself, causes death. [1913 Webster]