• WordNet 3.6
    • n chlorophyl any of a group of green pigments found in photosynthetic organisms; there are four naturally occurring forms
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Century Dictionary and Cyclopedia
  • Interesting fact: Mushrooms have no chlorophyll so they don't need sunshine to grow and thrive. Some of the earliest commercial mushroom farms were set up in caves in France during the reign of King Louis XIV (1638-1715).
    • n chlorophyl The green coloring matter of plants; also, the substance within the mass of protoplasm which is colored by this matter. The former is distinguished as chlorophyl pigment, the latter as the chlorophyl grain or granule. Chlorophyl grains occur in the green parts of all plants, and are rarely found in cells that are not exposed to the light. In some of the lower cryptogamic plants they occupy and color the whole protoplasmic mass; in others they form bands or stellate shapes; but ordinarily they appear as minute rounded granules embedded in the protoplasm. These granules are the essential agent in the process of assimilation in plants, decomposing carbonic acid and water under the action of sunlight, with the evolution of oxygen and the formation of starch or other carbon compounds. The chlorophyl pigment may be extracted from the granules by alcohol and other solvents, and appears when dry as a green resin-like powder. In solution it may be separated into two portions, one of a yellow color (xanthophyl), the other blue or greenish-blue (cyanophyl, or phyllocyanin). The change of color in leaves in autumn is due to the breaking up and various transformation of this pigment. In the etiolation or blanching of plants by exclusion of light the chlorophyl granules lose their color and finally become merged in the protoplasm, from which they are again developed by exposure to light and warmth. See also cut under Paramecium.
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Chambers's Twentieth Century Dictionary
    • Chlorophyl the ordinary colouring matter of vegetation, consisting of minute soft granules in the cells
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Chambers's Twentieth Century Dictionary
Gr. chlōros, pale-green.


In literature:

Green foods have been proven to be sources of the best iron, which is associated with chlorophyl.
"Northern Nut Growers Association Report of the Proceedings at the Twenty-Fifth Annual Meeting" by Northern Nut Growers Association
Chlorophyll: the green coloring matter of plants; one of the substances found in the blood of insects.
"Explanation of Terms Used in Entomology" by John. B. Smith
Motor cell; 2. stomata; 3. sclerenchyma; 4. chlorophyllous layer.
"A Handbook of Some South Indian Grasses" by Rai Bahadur K. Ranga Achariyar
He was only two inches away from the singer, and all this time had been hidden by his chlorophyll-hued veil.
"Edge of the Jungle" by William Beebe
The action of Carbonate of Ammonia on Chlorophyll Bodies.
"Life of Charles Darwin" by G. T. (George Thomas) Bettany
Chlorophyll in plants, work of, 332.
"Common Science" by Carleton W. Washburne
Chlorophyll is the miracle-worker of the vegetable world; it makes the solar power available for life.
"Under the Maples" by John Burroughs
Physiologically, the fungi are incapable of independent existence, being destitute of chlorophyl.
"The North American Slime-Moulds" by Thomas H. (Thomas Huston) MacBride
Is it true that the streets are filled with chlorophyll?
"Collector's Item" by Evelyn E. Smith
Here it is known as entero-chlorophyll.
"Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 6" by Various
They grow incredibly fast with a little sun, so the chlorophyll is biologically justified in the life-cycle.
"Tabby" by Winston Marks
BEIJERINCK, M. W.: 1902, Photobacteria as a Reactive in the Investigation of the Chlorophyll-function.
"The Nature of Animal Light" by E. Newton Harvey
The yeast plant and its allies are saprophytes and form no chlorophyll.
"Encyclopaedia Britannica, 11th Edition, Volume 10, Slice 3" by Various
For example, chlorophyl, the green coloring matter of vegetation, is a peculiar green as compared with green pigments.
"Visual Illusions" by Matthew Luckiesh
GEDDES, "Further researches on animals containing chlorophyll," Nature, xxv, pp.
"Freshwater Sponges, Hydroids & Polyzoa" by Nelson Annandale
The "breaking down of the chlorophyll" is a chemical change that attends the ripening of a leaf.
"Trees Worth Knowing" by Julia Ellen Rogers
In many of the cases given above the principal result is the weakening or destruction of the chlorophyll action.
"Disease in Plants" by H. Marshall Ward
These plants contain no chlorophyll and hence do not make their own food.
"A Civic Biology" by George William Hunter
Practically all of the cells of the plant contain chlorophyll and are capable of photosynthetic activity.
"Significant Achievements in Space Bioscience 1958-1964" by National Aeronautics and Space Administration
They also never form leaf-green, or chlorophyll, which is so characteristic of most other plants.
"The History of Creation, Vol. II (of 2)" by Ernst Haeckel

In poetry:

Yet from the first spring shoots through all the year,
Masked in the chlorophyll's intenser green,
The feast of crimson was already there,
These yellows blazed unseen.
"Ode On The Death Of Pius The Twelfth" by A D Hope

In news:

Hemp may be classified as a nutritional overachiever for many reasons: it is high in chlorophyll, which helps alkalize your body's pH, while also being rich in Omega 3 and 6.
The Long Wave Length Forms of Chlorophyll a.
The Long Wave Length Forms of Chlorophyll a .
SEATTLE — It's easy being green for a sea slug that has stolen enough genes to become the first animal shown to make chlorophyll like a plant.
With less chlorophyll, the plant has a tight, slower growth rate compared to other vegetative petunias .
This green fleshy feeling is due in part to the extreme chlorophyll density in spinach, and because the plant's tender, watery build makes this chlorophyll unusually accessible.
The brown we see is actually from the chlorophyll wall when all the pigment is removed so if we kill th...
Color change is due to the lack of daylight that leaves need to create food, or chlorophyll.
With less daylight, less chlorophyll is produced so leaves lose their green color .
The bloom, of course, is not a flower but foliage -- a rosette of central leaves that lose their chlorophyll as the mercury drops, changing from green to white, pink, purple, and near-red.
The specially-designed robots can measure water temperature, light levels and chlorophyll.
As chlorophyll production dwindles, the other colors show .
These are plants that contain chlorophyll and may detoxify the blood and provide increased levels of energy.
) This all has to do with making the victims eat or drink some concoction that will cause them to ooze chlorophyll (which looks very much like pouring crème de menthe on their heads in actual practice) and ultimately transform th...

In science:

The curves have been shifted vertically for clarity. (b) Chlorophyll absorption spectrum in the visible region for wavelengths between 400 and 700 nm compared with the experimental data in di-ethyl ether of Ref..
Turbo charging time-dependent density-functional theory with Lanczos chains
An even more challenging test is chlorophyll, a molecule which is of fundamental importance for life on Earth since it is responsible for the photosynthetic process.
Turbo charging time-dependent density-functional theory with Lanczos chains
Historically the interpretation of the visible spectrum of chlorophyll relies on the 4-orbital Gouterman model of porphyrins in which only the two highest occupied molecular orbitals and the two lowest unoccupied molecular orbitals are considered.
Turbo charging time-dependent density-functional theory with Lanczos chains
The group also demonstarated quantum interference for tetraphenylporphyrin, a derivative of a biodye which is found in chlorophyll.
Quantum interference of molecules -- probing the wave nature of matter
This permitted them to use shipborne sampling to find transects of zooplankton abundance and chlorophyll fluorescence, which provides an appropriate method for estimating phytoplankton concentration, and to make a spectral analysis of the spatial heterogeneity.
Stochastic population dynamics in turbulent fields
The analysis of changes in the spectrum of visible light due to absorption and fluorescence of chlorophyll pigments allow the estimation of phytoplankton biomass.
Stochastic population dynamics in turbulent fields
Faugeras, B., Levy, M., Memery, L., Verron, J., Blum, J. and Charpentier, I., 2003: Can biogeochemical fluxes be recovered from nitrate and chlorophyll data ? A case study assimilating data in the Northwestern Mediteranean Sea at the JGOFS-DYFAMED station.
A reduced-order strategy for 4D-Var data assimilation