teratocarcinoma

noun

te·​rato·​car·​ci·​no·​ma ˌter-ə-tō-ˌkär-sə-ˈnō-mə How to pronounce teratocarcinoma (audio)
: a malignant teratoma
especially : one involving germinal cells of the testis

Word History

Etymology

terato- + carcinoma

First Known Use

circa 1946, in the meaning defined above

Time Traveler
The first known use of teratocarcinoma was circa 1946

Rhymes for teratocarcinoma

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Browse Nearby Words

terato-
teratocarcinoma
teratogen
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Cite this Entry

“Teratocarcinoma.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/teratocarcinoma. Accessed 8 Jul. 2026.

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Medical Definition

teratocarcinoma

noun
te·​rato·​car·​ci·​no·​ma ˌter-ət-ō-ˌkärs-ᵊn-ˈō-mə How to pronounce teratocarcinoma (audio)
plural teratocarcinomas also teratocarcinomata -mət-ə How to pronounce teratocarcinoma (audio)
: a malignant teratoma
especially : one involving germinal cells of the testis or ovary
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