| / English Dictionary |
TUMOR
| Pronunciation (US): |  | (GB): | |
I. (noun)
Sense 1
Meaning:
An abnormal new mass of tissue that serves no purpose
Synonyms:
Classified under:
Nouns denoting stable states of affairs
Hypernyms ("tumor" is a kind of...):
growth ((pathology) an abnormal proliferation of tissue (as in a tumor))
Hyponyms (each of the following is a kind of "tumor"):
teratoma (a tumor consisting of a mixture of tissues not normally found at that site)
psammoma; sand tumor (a tumor derived from fibrous tissue of the meninges or choroid plexus or certain other structures associated with the brain; characterized by sandlike particles)
plasmacytoma (neoplasm of plasma cells (usually in bone marrow))
pinealoma (tumor of the pineal gland)
phaeochromocytoma; pheochromocytoma (a vascular tumor of the adrenal gland; hypersecretion of epinephrine results in intermittent or sustained hypertension)
neuroma (any tumor derived from cells of the nervous system)
neurilemoma; neurofibroma (tumor of the fibrous covering of a peripheral nerve)
meningioma (a tumor arising in the meninges which surround the brain and spinal cord; usually slow growing and sometimes malignant)
malignant neoplasm; malignant tumor; metastatic tumor (a tumor that is malignant and tends to spread to other parts of the body)
adipose tumor; lipoma (a tumor consisting of fatty tissue)
granuloma (a tumor composed of granulation tissue resulting from injury or inflammation or infection)
celioma (an abdominal tumor)
carcinoid (a small tumor (benign or malignant) arising from the mucosa of the gastrointestinal tract; usually associated with excessive secretion of serotonin)
brain tumor; brain tumour (a tumor in the brain)
blastocytoma; blastoma; embryonal carcinosarcoma (a tumor composed of immature undifferentiated cells)
benign tumor; benign tumour; nonmalignant neoplasm; nonmalignant tumor; nonmalignant tumour (a tumor that is not cancerous)
angioma (a tumor consisting of a mass of blood or lymphatic vessels)
acanthoma; skin tumor (a neoplasm originating in the epidermis)
Context examples:
ACN53 is a weakened adenovirus that carries the p53 gene into tumor cells, causing them to die.
(ACN53, NCI Dictionary)
Tumors may also occur in the brain and on nerves in the skull and spinal cord, and may cause loss of speech, eye movement, and the ability to swallow.
(Acoustic neurofibromatosis, NCI Dictionary)
A malignant, usually aggressive tumor composed of atypical, neoplastic melanocytes.
(Melanoma, NCI Thesaurus)
Vaccination with this agent may stimulate a host cytotoxic T-cell response against tumor cells expressing melanoma-associated antigens, resulting in tumor cell lysis.
(Melanoma Helper Peptide Vaccine, NCI Thesaurus)
This strain is susceptible to a variety of neoplasms including testicular, adrenal, pituitary, and skin and ear duct tumors in males and pituitary, uterine, mammary, and adrenal tumors in females.
(ACI/Seg, Rat Strain, NCI Thesaurus)
We both agreed we must be grateful that the doctors found a benign tumor, and her insurance paid for most of the surgery.
(AstrologyZone.com, by Susan Miller)
A clinical finding about one or more characteristics of melanoma of the conjunctiva, following the rules of the TNM AJCC v7 classification system as they pertain to staging of the primary tumor.
(Melanoma of the Conjunctiva Clinical Primary Tumor TNM Finding v7, NCI Thesaurus)
Inhibition of these processes results in suppression of the production of proinflammatory cytokines, such as tumor necrosis factor alpha and interleukin 6.
(Acai Berry Juice, NCI Thesaurus)
Malignant epithelial tumor arising in the accessory urethral glands.
(Accessory Urethral Gland Carcinoma, NCI Thesaurus)
An acoustic neuroma is a benign tumor that develops on the nerve that connects the ear to the brain.
(Acoustic Neuroma, NIH: National Institute of Deafness and Communication Disorders)
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