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Queen's English for tumor, see there.
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.


1. Any swelling or tumefaction.
2. Synonym(s): neoplasm, tumour.
3. One of the four signs of inflammation (tumor, calor, dolor, rubor) enunciated by Celsus.
Synonym(s): tumour.
[L. tumor, a swelling]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012


A swelling. The term usually refers to any mass of cells resulting from abnormal degree of multiplication. Tumours may be BENIGN or MALIGNANT. Benign tumours enlarge locally, and are often enclosed in capsules, but do not invade tissue or spread remotely. Malignant tumours infiltrate locally and also seed off into lymphatic vessels and the bloodstream to establish secondary growths (metastases) elsewhere in the body.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005


a swelling, usually a morbid growth.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005


(tū'mŏr) Avoid the jargonistic use of this word as a synonym of neoplasm.
1. Any swelling or tumefaction.
2. One of the four signs of inflammation (the others are, calor, dolor, rubor) enunciated by Celsus.
Synonym(s): tumour.
[L. tumor, a swelling]
Medical Dictionary for the Dental Professions © Farlex 2012

Patient discussion about tumour

Q. What is a brain tumor?

A. A brain tumour is any intracranial tumor normally either in the brain itself in the cranial nerves, in the brain envelopes, skull, pituitary and pineal gland, or spread from cancers primarily located in other organs (metastatic tumors). It is created by abnormal and uncontrolled cell division. Primary (true) brain tumors (which start in the brain) are commonly located in the posterior cranial fossa in children and in the anterior two-thirds of the cerebral hemispheres in adults, although they can affect any part of the brain.

Q. Is this a tumor? I felt a lump in my breast a few days ago in the shower. Is this a Tumor? Help! I'm scared.

A. If you felt a lump in your breast then you should go see your Doctor to check whether or not it is something that could be dangerous.

Q. what is carcinoid tumors? I had my appendix removed and the doctor came in the room very shocked and said it was full of carcinoid tumors. Im scared to get them somewhere else.

A. ya I have pain all the time but the doctors wont give me anything cuz im so young they don't want me hooked on anything. thank you sooo much for being so kind.

More discussions about tumour
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References in periodicals archive ?
Few cases (15%) are diagnosed with localised tumour (stage 1) when the 5-year survival rate is 92%.6
The aim of this article is to give an overview of the burden of CNS tumours in different age groups in our region and to study the major histologic subtypes of brain tumours.
Keywords: Wilms tumour, Nephroblastoma, Wilms nephrectomy, nephron sparing surgery.
[7] and one case of mixed tumour, cystadenomafibroma was present.
We have not reported any case of sclerosing stromal tumour of the ovary however these are reported in the literature.10
Desmoid tumours complicating familial adenomatous polyposis.
Oncocytic metaplasia of the nasopharynx or extra-parotid Warthin's tumour? J Clin Pathol 1991;44:1030-2.
Malignant tumours of the minor salivary glands in northern Pakistan: a clinicopathological study 2008;1: 90-3.
Incidence and management of ovarian tumours. Bombay Hospital J 2008;50(1):30-3.
Pattern of Ovarian tumours among Malaysian Women at General Hospital, SSSKuala Lumpur.
Germ cell tumours confined to the supra-clavicular fossa: A report of two cases.