Definitions for: Tumor


[n] an abnormal new mass of tissue that serves no purpose



Webster (1913) Definition: Tu"mor, 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.

2. Affected pomp; bombast; swelling words or expressions;
false magnificence or sublimity. [R.]

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.

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.

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.

Synonyms: neoplasm, tumour

See Also: acanthoma, adipose tumor, angioma, benign tumor, benign tumour, blastocytoma, blastoma, brain tumor, brain tumour, carcinoid, celioma, embryonal carcinosarcoma, granuloma, growth, lipoma, malignant neoplasm, malignant tumor, meningioma, metastatic tumor, neurilemoma, neurofibroma, neuroma, nonmalignant neoplasm, nonmalignant tumor, nonmalignant tumout, phaeochromocytoma, pheochromocytoma, pinealoma, plasmacytoma, psammoma, sand tumor, skin tumor, teratoma

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