[ nee-uh-plaz-uh m ]
/ ˈni əˌplæz əm /

noun Pathology.

a new, often uncontrolled growth of abnormal tissue; tumor.

Origin of neoplasm

1860–65; neo- + plasm


ne·o·plas·tic [nee-uh-plas-tik] /ˌni əˈplæs tɪk/, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for neoplasm

  • A tumour or neoplasm is a localised swelling composed of newly formed tissue which fulfils no physiological function.

    Manual of Surgery|Alexis Thomson and Alexander Miles

British Dictionary definitions for neoplasm

/ (ˈniːəʊˌplæzəm) /


pathol any abnormal new growth of tissue; tumour

Derived forms of neoplasm

neoplastic (ˌniːəʊˈplæstɪk), adjective
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medicine definitions for neoplasm

[ nēə-plăz′əm ]


An abnormal new growth of tissue that grows by cellular proliferation more rapidly than normal, continues to grow after the stimuli that initiated the new growth cease, shows partial or complete lack of structural organization and functional coordination with the normal tissue, and usually forms a distinct mass of tissue which may be either benign or malignant.

Other words from neoplasm

ne′o•plastic (-plăstĭk) adj.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Science definitions for neoplasm

[ nēə-plăz′əm ]

An abnormal growth of tissue in animals or plants. Neoplasms can be benign or malignant. Also called tumor

Other words from neoplasm

neoplastic adjective (nē′ə-plăstĭk)
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.