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1. (n.) teratoma
a tumor made up of different types of tissue.
Etymology: (1885–90; < Gk terat-, s. of téras monster +-oma)
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| Definition of 'teratoma' |
Princeton's WordNet |
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1. (noun) teratoma
a tumor consisting of a mixture of tissues not normally found at that site
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| Definition of 'teratoma' |
Webster Dictionary |
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1. (noun) teratoma
a tumor, sometimes found in newborn children, which is made up of a heterigenous mixture of tissues, as of bone, cartilage and muscle
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| Definition of 'teratoma' |
U.S. National Library of Medicine |
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1. teratoma
A true neoplasm composed of a number of different types of tissue, none of which is native to the area in which it occurs. It is composed of tissues that are derived from three germinal layers, the endoderm, mesoderm, and ectoderm. They are classified histologically as mature (benign) or immature (malignant). (From DeVita Jr et al., Cancer: Principles & Practice of Oncology, 3d ed, p1642)
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Definitions of teratoma 
