Teratoma

//tɛɹəˈtəʊmə// noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    A benign or malignant tumour, especially of the gonads, that arises from germ cells and consists of different types of tissue such as skin, hair, or muscle.

    "‘What is a teratoma?’ asked Jack, holding the object in his hand. ‘A kind of grenado?’ ‘It is an inward wen, a tumour: we find them, occasionally, in the abdominal cavity. Sometimes they contain long black hair, sometimes a set of teeth: this has both hair and teeth.’"

  2. 2
    a tumor consisting of a mixture of tissues not normally found at that site wordnet

Example

More examples

"‘What is a teratoma?’ asked Jack, holding the object in his hand. ‘A kind of grenado?’ ‘It is an inward wen, a tumour: we find them, occasionally, in the abdominal cavity. Sometimes they contain long black hair, sometimes a set of teeth: this has both hair and teeth.’"

Etymology

From German Teratom; equivalent to terato- + -oma.

Related phrases

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.