tumor

(to̵̅o̅′mər, tyo̵̅o̅′-)

noun

1. a swelling on some part of the body
2. a mass of new tissue growth independent of its surrounding structures, having no physiological function; neoplasm: such tumors are classified as benign or malignant
Obsolete high-flown language; bombast

Origin: L, a swelling < tumere, to swell < IE base *tēu-, to swell > thumb

Brit. sp. tumour

Related Forms:

See tumor in American Heritage Dictionary 4

noun

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

Origin:

Origin: Middle English tumour

Origin: , from Latin tumor

Origin: , from tumēre, to swell; see teuə- in Indo-European roots

Related Forms: