Pyrene

3 definitions found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Pyrene \Py"rene\, n. [Gr. ? fire.] (Chem.)
     One of the less volatile hydrocarbons of coal tar, obtained
     as a white crystalline substance, {C16H10}.
     [1913 Webster]

From The Collaborative International Dictionary of English v.0.48 [gcide]:



  Pyrene \Py"rene\, n. (Bot.)
     Same as {Pyrena}.
     [1913 Webster]

From WordNet (r) 2.0 [wn]:

  pyrene
       n 1: a pale yellow crystalline hydrocarbon C16H10 extracted from
            coal tar
       2: the small hard nutlet of a drupe or drupelet; the seed and
          the hard endocarp that surrounds it