chlorophyll

• POS: Noun
• HYPHEN: chlo=ro=phyll

CIDE DICTIONARY

chlorophyll, n. [Gr. chlwro`s light green + fy`llon leaf: cf. F. chlorophylle.].

•  Literally, leaf green; a green granular matter formed in the cells of the leaves (and other parts exposed to light) of plants, to which they owe their green color, and through which all ordinary assimilation of plant food takes place. Similar chlorophyll granules have been found in the tissues of the lower animals.  [1913 Webster]
•  any of a group of green pigments found in photosynthetic organisms. Chlorophyll a and chlorophyll b are found in higher plants and green algae; chlorophyll c is found in certain types of marine algae. Chemically, it has a porphyrin ring with a magnesium ion bound to the four central nitrogens, and has a phytyl side chain. It is essential for photosynthesis in most plants. Chlorophyll a has formula C55H72N4O5Mg.  [WordNet 1.5]

OXFORD DICTIONARY

chlorophyll, n. the green pigment found in most plants, responsible for light absorption to provide energy for photosynthesis.

Derivative

chlorophyllous adj.

Etymology

F chlorophylle f. Gk phullon leaf: see CHLORO-