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chlorophyll

The definition of chlorophyll is a green color found in plant cells.

(noun)

An example of chlorophyll is what makes the leaf on a tree green.

See chlorophyll in Webster's New World College Dictionary

noun

the green pigment found in the chloroplasts of plant cells: it occurs in five forms, esp. (), CHMgNO, and (), CHMgNO: it is essential to the photosynthetic process and is used as a coloring agent, in topical medicines, etc.

Origin: Fr chlorophylle: see chloro- & -phyll

Related Forms:

chlorophyllose adjective or chlorophyllous

See chlorophyll in American Heritage Dictionary 4

also chlo·ro·phyl

noun

Any of a group of green pigments that are found in the chloroplasts of plants and in other photosynthetic organisms such as cyanobacteria, especially:

a. A waxy blue-black microcrystalline green-plant pigment, C₅₅H₇₂MgN₄O₅, with a characteristic blue-green alcohol solution. Also called chlorophyll a.

b. A similar green-plant pigment, C₅₅H₇₀MgN₄O₆, having a brilliant green alcohol solution. Also called chlorophyll b.

Related Forms: