TUMOR
tumor, tumour, neoplasm
(noun) an abnormal new mass of tissue that serves no purpose
Source: WordNet® 3.1
Etymology
Noun
tumor (plural tumors) (American spelling)
(oncology, pathology) An abnormal growth; differential diagnosis includes abscess, metaplasia, and neoplasia.
Usage notes
Tumor is the standard US spelling and an alternative spelling in Canada. Tumour is the standard modern spelling elsewhere.
Synonyms
• (an abnormal growth): neoplasm
Hyponyms
• (an abnormal growth): primary brain tumor
• See also tumor
Source: Wiktionary
Tu"mor, n. Etym: [L., fr. tumere to swell: cf. F. tumeúr. See Tumid.]
1. (Med.)
Definition: 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.
Source: Webster’s Unabridged Dictionary 1913 Edition