D defs.my
Entry 1 sense Webster, 1913

Etiolin

· E·ti·o·lin · IPA
01 n. A yellowish coloring matter found in plants grown in darkness, which is supposed to be an antecedent condition of chlorophyll.
  1. 1.
    A yellowish coloring matter found in plants grown in darkness, which is supposed to be an antecedent condition of chlorophyll.(Bot.)