D defs.my
Entry 2 senses · 2 variants Webster, 1913

Pyrene

· Py·rene · IPA /ˈpɪɹ.ən/
01 n. One of the less volatile hydrocarbons of coal tar, obtained as a white crystalline substance, C16H10.
  1. 1.
    One of the less volatile hydrocarbons of coal tar, obtained as a white crystalline substance, C16H10.(Chem.)
02 n. Same as Pyrena.
  1. 1.
    Same as Pyrena.(Bot.) See: Pyrena