tumor (redirected from Carcinoid tumor)

tu·mor  (tmr, ty-)

n.

1. An abnormal growth of tissue resulting from uncontrolled, progressive multiplication of cells and serving no physiological function; a neoplasm.

2. A swollen part; a swelling.

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[Middle English tumour, from Latin tumor, from tumre, to swell; see teu- in Indo-European roots.]

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tumor·al, tumor·ous adj.

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tumor  (tmr)

See neoplasm. See Note at cancer.

Thesaurus

Noun

1.

tumor - an abnormal new mass of tissue that serves no purpose neoplasm, tumour growth - (pathology) an abnormal proliferation of tissue (as in a tumor) acanthoma, skin tumor - a neoplasm originating in the epidermis angioma - a tumor consisting of a mass of blood or lymphatic vessels benign tumor, benign tumour, nonmalignant neoplasm, nonmalignant tumor, nonmalignant tumour - a tumor that is not cancerous blastocytoma, blastoma, embryonal carcinosarcoma - a tumor composed of immature undifferentiated cells brain tumor, brain tumour - a tumor in the brain carcinoid - a small tumor (benign or malignant) arising from the mucosa of the gastrointestinal tract; usually associated with excessive secretion of serotonin celioma - an abdominal tumor granuloma - a tumor composed of granulation tissue resulting from injury or inflammation or infection adipose tumor, lipoma - a tumor consisting of fatty tissue malignant neoplasm, malignant tumor, metastatic tumor - a tumor that is malignant and tends to spread to other parts of the body meningioma - a tumor arising in the meninges which surround the brain and spinal cord; usually slow growing and sometimes malignant neurilemoma, neurofibroma - tumor of the fibrous covering of a peripheral nerve neuroma - any tumor derived from cells of the nervous system phaeochromocytoma, pheochromocytoma - a vascular tumor of the adrenal gland; hypersecretion of epinephrine results in intermittent or sustained hypertension pinealoma - tumor of the pineal gland plasmacytoma - neoplasm of plasma cells (usually in bone marrow) 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 teratoma - a tumor consisting of a mixture of tissues not normally found at that site