• synonyms


[nee-uh-plaz-uh m]
See more synonyms on Thesaurus.com
noun Pathology.
  1. a new, often uncontrolled growth of abnormal tissue; tumor.

Origin of neoplasm

1860–65; neo- + plasm
Related formsne·o·plas·tic [nee-uh-plas-tik] /ˌni əˈplæs tɪk/, adjective


[nee-oh-plas-tuh-siz-uh m]
noun (sometimes initial capital letter) Fine Arts.
  1. the theory and practice of the de Stijl school, chiefly characterized by an emphasis on the formal structure of a work of art, and restriction of spatial or linear relations to vertical and horizontal movements as well as restriction of the artist's palette to black, white, and the primary colors.

Origin of neoplasticism

< French néo-plasticisme (1920); see neo-, + plastic (adjective) + -ism
Related formsne·o·plas·tic, adjectivene·o·plas·ti·cist, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for neoplastic


  1. pathol any abnormal new growth of tissue; tumour
Derived Formsneoplastic (ˌniːəʊˈplæstɪk), adjective


  1. the style of abstract painting evolved by Mondrian and the Dutch de Stijl movement, characterized by the use of horizontal and vertical lines and planes and by black, white, grey, and primary colours
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

Word Origin and History for neoplastic



1864, coined in German by Karl Friedrich Burdach (1776-1847) from neo- + Greek plasma "formation" (see -plasm). Related: Neoplastic.

Online Etymology Dictionary, © 2010 Douglas Harper

neoplastic in Medicine


  1. 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.
Related formsne′o•plastic (-plăstĭk) adj.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

neoplastic in Science


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