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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. 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.

chlo′ro·phyl′lous adj.
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Adj.1.chlorophyllous - relating to or being or containing chlorophyll
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Survival of chlorophyllous and nonchlorophyllous fern spores through exposure to liquid nitrogen.
The microscopic view of the internode (Figure 1C) reflects that all vascular bundles are embedded in the parenchyma with the larger ones (V) being arranged in a circle or ellipse, while the smaller peripheral (P) are located close to chlorophyllous bands.
Starch grains are present in the parenchymatic cells near to the vascular bundles, between chlorophyllous parenchyma and spongy parenchyma.
In Hordeum vulgare, transcripts for the plastid genes rbcL, psbD-psbC and the 16S and 23S plastid RNAs are less represented than they are in chlorophyllous plantlets.
Leaves are alternate, imbricate, and bilobed; the hyaline ventral leaf lobe and an aerial chlorophyllous dorsal lobe are covered with short bicellular trichomes and bear an extracellular cavity housing filamentous Anabaena (Figs.