Icelandic

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Etymology

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From bóla (smallpox) +‎ efni (material) by comparison with bólusetja (to vaccinate), as the first vaccinations inoculated people against smallpox.

Noun

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bóluefni n (genitive singular bóluefnis, nominative plural bóluefni)

  1. (immunology) vaccine

Declension

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