chlorophyll

noun
chlo·​ro·​phyll | \ ˈklȯr-ə-ˌfil How to pronounce chlorophyll (audio) , -fəl \

Definition of chlorophyll

1 : the green photosynthetic pigment found chiefly in the chloroplasts of plants and occurring especially as a blue-black ester C55H72MgN4O5 or a dark green ester C55H70MgN4O6

called also respectively chlorophyll a, chlorophyll b

2 : a waxy green chlorophyll-containing substance extracted from green plants and used as a coloring agent or deodorant

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Other Words from chlorophyll

chlorophyllous \ ˌklȯr-​ə-​ˈfi-​ləs How to pronounce chlorophyllous (audio) \ adjective

Examples of chlorophyll in a Sentence

Recent Examples on the Web Measurements of Chlorophyll A, a specific form of chlorophyll that absorbs blue and red light and reflects green light, taken from Feb. 23 to March 8 can be seen in the photograph capturing the Atlantic Ocean, Carlowicz said. Matt Berg, BostonGlobe.com, "NASA captures images of Cape Cod as spring begins to stir," 10 Mar. 2020 Swirls of chlorophyll gel and crema circled each bite, and masa chips came mounted on a stand next to the plate, each one embedded with a single epazote leaf. Mike Sutter, ExpressNews.com, "Review: High-end San Antonio restaurant Evo Contemporary Mexican Cuisine has noble approach, humble results in Olmos Park," 23 Jan. 2020 Revel in the changing of the chlorophyll guard in Bishop and at Mammoth and June lakes. Los Angeles Times, "Escapes: Falling for fall in the Sierra," 10 Oct. 2019 This process unmasks pigments typically overpowered by chlorophyll, creating the beautiful colors associated with fall foliage. Andrea Michelson, Smithsonian, "This Interactive Map Shows Fall Foliage Predictions Across the U.S.," 9 Oct. 2019 Plants need iron to transfer electrons during photosynthesis and to make chlorophyll. Emily Underwood, Smithsonian Magazine, "The Complicated Role of Iron in Ocean Health and Climate Change," 6 Jan. 2020 The rest is a function of cool evenings and sunny days to burn off the chlorophyll within each leaf. John Meyer, The Know, "Why do leaves change color in the fall?," 24 Sep. 2019 As days grow shorter with the approach of winter, trees stop making the chlorophyll that is responsible for photosynthesis, the process by which plants convert sunlight into chemical energy, West explained. John Meyer, The Know, "Why do leaves change color in the fall?," 24 Sep. 2019 According to Nair, the system detects potential fishing zones by using the same parameters as other satellites (such as sea-surface temperature and chlorophyll content) to provide forecasts three days in advance. Ranjit Devraj, Quartz India, "Space tech as inexpensive as a smartphone will now help Indian fishermen navigate cyclones," 24 Oct. 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'chlorophyll.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of chlorophyll

1819, in the meaning defined at sense 1

History and Etymology for chlorophyll

French chlorophylle, from chlor- + Greek phyllon leaf — more at blade

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Time Traveler for chlorophyll

Time Traveler

The first known use of chlorophyll was in 1819

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Statistics for chlorophyll

Cite this Entry

“Chlorophyll.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/chlorophyll. Accessed 15 Jul. 2020.

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More Definitions for chlorophyll

chlorophyll

noun
How to pronounce chlorophyll (audio)

English Language Learners Definition of chlorophyll

: the green substance in plants that makes it possible for them to make food from carbon dioxide and water

chlorophyll

noun
chlo·​ro·​phyll | \ ˈklȯr-ə-ˌfil How to pronounce chlorophyll (audio) \

Kids Definition of chlorophyll

: the green coloring matter found mainly in the chloroplasts of plants that absorbs energy from sunlight to produce carbohydrates from carbon dioxide and water during photosynthesis

chlorophyll

noun
chlo·​ro·​phyll | \ ˈklōr-ə-ˌfil, ˈklȯr-, -fəl How to pronounce chlorophyll (audio) \

Medical Definition of chlorophyll

1 : the green photosynthetic coloring matter of plants found in chloroplasts and made up chiefly of a blue-black ester C55H72MgN4O5 and a dark green ester C55H70MgN4O6

called also respectively chlorophyll a, chlorophyll b

2 : a waxy green chlorophyll-containing substance extracted from green plants and used as a coloring agent or deodorant

Other Words from chlorophyll

chlorophyllous \ ˌklōr-​ə-​ˈfil-​əs, ˌklȯr-​ How to pronounce chlorophyllous (audio) \ also chlorophyllose \ -​ˈfil-​ˌōs, -​(ˌ)fil-​ˈ How to pronounce chlorophyllose (audio) \ adjective

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Comments on chlorophyll

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