Etymology

trigeminous

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Today it means: born three together; being one of three born at the same birth Full definition →

Latin trigeminus
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The story

  1. Latin · derived fromtrigeminus“born three together”
  2. English todaytrigeminous

From Latin trigeminus (“born three together”), from tri- + geminus (“twin”). Compare tergeminous.

Etymology from Wiktionary, CC BY-SA 4.0.