Chlorophyll a
Chlorophyll Chlo"ro*phyll, n. [Gr. chlwro`s light green + fy`llon leaf: cf. F. chlorophylle.] 1. (Bot.) 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. [Written also {chlorophyl}.] [1913 Webster]

2. 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}.

Syn: chlorophyll. [WordNet 1.5]


The Collaborative International Dictionary of English. 2000.

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  • Chlorophyll a — Identifiers PubChem 6433192 …   Wikipedia

  • Chlorophyll a — Chlorophyll Chlo ro*phyll, n. [Gr. chlwro s light green + fy llon leaf: cf. F. chlorophylle.] 1. (Bot.) 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… …   The Collaborative International Dictionary of English

  • chlorophyll a — noun a blue black plant pigment having a blue green alcohol solution; found in all higher plants • Hypernyms: ↑chlorophyll, ↑chlorophyl * * * noun see chlorophyll …   Useful english dictionary

  • Chlorophyll fluorescence — is light that has been re emitted after being absorbed by chlorophyll molecules of plant leaves. By measuring the intensity and nature of this fluorescence, plant ecophysiology can be investigated. Contents 1 Assessing plant physiology with… …   Wikipedia

  • Chlorophyll f — is a hypothesized form of chlorophyll that absorbs further in the red (infrared light) than other chlorophylls.[1][2] It was reported from stromatolites from Western Australia s Shark Bay.[3] The finding was made by scientists at the University… …   Wikipedia

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  • Chlorophyll — Chlo ro*phyll, n. [Gr. chlwro s light green + fy llon leaf: cf. F. chlorophylle.] 1. (Bot.) 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… …   The Collaborative International Dictionary of English

  • chlorophyll b — Chlorophyll Chlo ro*phyll, n. [Gr. chlwro s light green + fy llon leaf: cf. F. chlorophylle.] 1. (Bot.) 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… …   The Collaborative International Dictionary of English

  • chlorophyll c — Chlorophyll Chlo ro*phyll, n. [Gr. chlwro s light green + fy llon leaf: cf. F. chlorophylle.] 1. (Bot.) 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… …   The Collaborative International Dictionary of English

  • Chlorophyll b — Identifiers PubChem 25244471 …   Wikipedia

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