CHLOROPHYLL

noun see: blade Date: 1819 the green photosynthetic pigment found chiefly in the chloroplasts of plants and occurring especially as a blue-black ester C 55 H 72 MgN 4 O 5 or a dark green ester C 55 H 70 MgN 4 O 6 , a waxy green ~-containing substance extracted from green plants and used as a coloring agent or deodorant, ~ous adjective