Chlorophyll definition

klôrə-fĭl
Any of a group of green pigments that capture light energy used as the energy source in photosynthesis and that are found in the chloroplasts of plants and other photosynthetic organisms such as cyanobacteria, especially:
  • A waxy blue-black microcrystalline green-plant pigment, C55 H72 MgN4 O5 , with a characteristic blue-green alcohol solution.
  • A similar green-plant pigment, C55 H70 MgN4 O6 , having a brilliant green alcohol solution.
noun
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The definition of chlorophyll is a green color found in plant cells.

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

noun
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The green pigment found in the chloroplasts of plant cells: it occurs in five forms, esp. (chlorophyll a), C55H72MgN4O5, and (chlorophyll b), C55H70MgN4O6: it is essential to the photosynthetic process and is used as a coloring agent, in topical medicines, etc.
noun
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Any of a group of green pigments that absorb light energy used in photosynthesis and that are found in the chloroplasts of plants and other photosynthetic organisms such as cyanobacteria, especially:
  • A waxy blue-black microcrystalline green-plant pigment, C55 H72 MgN4 O5 , with a characteristic blue-green alcohol solution.
  • A similar green-plant pigment, C55 H70 MgN4 O6 , having a brilliant green alcohol solution.
noun
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Any of several green pigments found in photosynthetic organisms, such as plants, algae, and cyanobacteria. At its molecular core, chlorophyll has a porphyrin structure but contains a magnesium atom at its center and a long carbon side chain. Chlorophyll absorbs red and blue wavelengths of light, but reflects green. When it absorbs light energy, a chlorophyll molecule enters a higher energy state in which it easily gives up an electron to the first available electron-accepting molecule nearby. This electron moves through a chain of acceptors and is ultimately used in the synthesis of ATP, which provides chemical energy for plant metabolism. Plants rely on two forms of chlorophyll, chlorophyll a ( C66H72MgN4O5 ) and chlorophyll b ( C66H70MgN4O6 ), which have slightly different light absorbing properties. All plants, algae, and cyanobacteria have chlorophyll a, since only this compound can pass an electron to acceptors in oxygen-producing photosynthetic reactions. Chlorophyll b absorbs light energy that is then transferred to chlorophyll a. Several protist groups such as brown algae and diatoms lack chlorophyll b but have another pigment, chlorophyll c, instead. Other closely related pigments are used by various bacteria in photosynthetic reactions that do not produce oxygen.
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Any of a group of green pigments that are found in the chloroplasts of plants and in other photosynthetic organisms such as cyanobacteria.
noun
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Alternative Forms

Alternative Form of chlorophyll - chlorophyl

Other Word Forms

Noun

Singular:
chlorophyll
Plural:
chlorophylls

Origin of chlorophyll

  • From French chlorophylle.

    From Wiktionary