English Dictionary

TUMOR

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 Dictionary entry overview: What does tumor mean? 

TUMOR (noun)
  The noun TUMOR has 1 sense:

1. an abnormal new mass of tissue that serves no purposeplay

  Familiarity information: TUMOR used as a noun is very rare.


 Dictionary entry details 


TUMOR (noun)


Sense 1

Meaning:

An abnormal new mass of tissue that serves no purpose

Classified under:

Nouns denoting stable states of affairs

Synonyms:

neoplasm; tumor; tumour

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"):

malignant neoplasm; malignant tumor; metastatic tumor (a tumor that is malignant and tends to spread to other parts of the body)

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)

acanthoma; skin tumor (a neoplasm originating in the epidermis)

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)


 Context examples 


Mice who received ZIKV survived longer than mice in the control group, and their tumors were significantly smaller than those in the control mice after one week.

(Zika virus selectively infects and kills glioblastoma cells in mice, National Institutes of Health)

Nine of the children (21 percent) had been diagnosed with ADHD before their tumors had been discovered.

(Rare cancers may masquerade as ADHD in children, NIH)

This agent may also inhibit tumor angiogenesis.

(Acitretin, NCI Thesaurus)

A derivative of D-glucaro-1, 4-lactone with chemopreventive and anti-tumor activities.

(Aceglatone, NCI Thesaurus)

It may also block the growth of new blood vessels that tumors need to grow and may cause cancer cells to die.

(ABT-869, NCI Dictionary)

The tumor associated antigens Melan-A and MAGE-3 are overexpressed in a variety of cancer cell types.

(Melan-A/MAGE-3.DP4 Peptide Vaccine, NCI Thesaurus)

Medulloblastomas are a type of primitive neuroectodermal tumor (PNET).

(Medulloblastoma, NCI Dictionary)

DMGs are aggressive, hard-to-treat tumors that represent the leading cause of brain cancer-related death.

(Scientists find promising drug combination against lethal childhood brain cancers, National Institutes of Health)

However, DLBCL has fewer circulating tumor cells relative to many other cancers.

(Tumor DNA in Blood Reveals Lymphoma Progression, NIH)

This may inhibit tumor cell proliferation in ER-positive tumor cells.

(Acolbifene hydrochloride, NCI Thesaurus)



 Learn English with... Proverbs 
"Many hands make light work." (English proverb)

"A danger foreseen is half-avoided." (Native American proverb, Cheyenne)

"Do not buy either the moon or the news, for in the end they will both come out." (Arabic proverb)

"It's not only cooks that wear long knives." (Dutch proverb)



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