Definition of teratoma in English:

teratoma

Pronunciation /ˌterəˈtōmə/ /ˌtɛrəˈtoʊmə/

nounteratomas, teratomata

Medicine
  • A tumor composed of tissues not normally present at the site (the site being typically in the gonads).

    ‘To our knowledge, no similar tumor has been described in the ovary or in teratomas at any other site.’
    • ‘The gastrointestinal tract is an unusual site for teratomas to occur.’
    • ‘However, five of 19 animals developed teratomata; tumour formation being a major complication of embryonic stem cell transplantation.’
    • ‘Gastric teratoma is a rare tumor usually seen in male infants.’
    • ‘The treatment for teratomas, whether benign or malignant, is resection as the tumor may grow to impinge on adjacent structures.’