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teratogen

teratogen

1 9.9
Something that makes a baby develop badly before birth
  • noun
  • /ˈtɛrəˌtoʊdʒən/
  • Specialized
: teratógeno
  • Thalidomide, a drug approved for marketing in various European countries, was discovered to be a teratogen, an agent that can cause malformations of an embryo or fetus.

Examples

  • And then shortly after its widespread consumption, it was found that this is a teratogen and it produces hideous birth defects.

  • Teratogen exposure during weeks 3 through 10 can result in impaired organogenesis.

    Academic text (2003)
  • Now we know better, and as a species we're smarter as a result; we're aware of teratogens.

    Fiction book (2001)
  • Unfortunately, the medication was a pretty serious teratogen; it caused severe birth defects.

    Blog text (26)
  • Methotrexate is a human teratogen, so it is absolutely contraindicated in pregnancy.

    Academic text (2012)
  • Alcohol is a teratogen.

    Blog text (25)
  • Although alcohol was recognized as a teratogen in 1973, it was not until 2002 that the CDC began developing diagnostic guidelines for FAS and FASD (Williams, Smith & Committee on Substance Abuse, 2015).

    Academic text (2016)
  • Certain medications can act as teratogens, leading to serious birth defects in developing fetuses.

  • Exposure to environmental teratogens during pregnancy can affect the health of the unborn child.

  • Pathogens and harmful substances can be classified as teratogens that disrupt normal fetal development.

Surface Forms

teratogen singular
teratogens plural

Morphology

teratogen = terat + gen

The term is built from specialized Greek combining forms ('terat-' + '-gen') that are not productive standalone English words, so learners cannot reliably infer the meaning from common vocabulary knowledge.

Etymology

The word teratogen comes from Greek parts terato- from teras meaning 'monster' and -gen meaning 'to produce', the same root as generate and gene. So a teratogen is something that 'produces monsters', which is an easy way to remember that it causes abnormal development in an embryo or fetus, a baby before birth.