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EnglishEdit

NounEdit

spiran (plural spirans)

  1. (organic chemistry) Any of a class of bicyclic hydrocarbons in which a carbon atom has two single bonds in each of two rings; a form of spiro compound

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EsperantoEdit

AdjectiveEdit

spiran

  1. accusative singular of spira

SwedishEdit

NounEdit

spiran

  1. definite singular of spira