[ nee-uh-plaz-uhm ]
/ ˈni əˌplæz əm /
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noun Pathology.

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



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Origin of neoplasm

1860–65; neo- + -plasm
ne·o·plas·tic [nee-uh-plas-tik], /ˌni əˈplæs tɪk/, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

British Dictionary definitions for neoplasm

/ (ˈniːəʊˌplæzəm) /


pathol any abnormal new growth of tissue; tumour
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

Medical 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.
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.

Scientific definitions for neoplasm

[ nēə-plăz′əm ]

An abnormal growth of tissue in animals or plants. Neoplasms can be benign or malignant. Also called tumor
neoplastic adjective (nē′ə-plăstĭk)
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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