• synonyms


noun, plural ter·a·to·mas, ter·a·to·ma·ta [ter-uh-toh-muh-tuh] /ˌtɛr əˈtoʊ mə tə/. Pathology.
  1. a tumor made up of different types of tissue.
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Origin of teratoma

First recorded in 1885–90; terat- + -oma
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for teratoma


noun plural -mata (-mətə) or -mas
  1. a tumour or group of tumours composed of tissue foreign to the site of growth
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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

teratoma in Medicine


n. pl. ter•a•to•mas
  1. A tumor consisting of different types of tissue, as of skin, hair, and muscle, caused by the development of independent germ cells.teratoblastoma teratoid tumor
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Related formster′a•toma•tous (-tōmə-təs) adj.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.