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

While changes in chlorophyll counts could be a result of climate change, they can also be impacted by normal weather events, such as El Niño, that happen every few years. Jill Kiedaisch, Popular Mechanics, "Half of the World's Oceans Will Change in Color by the End of this Century," 5 Feb. 2019 Scientists have been charting satellite imagery to measure chlorophyll as an indicator of phytoplankton in various regions since the 1990s. Jill Kiedaisch, Popular Mechanics, "Half of the World's Oceans Will Change in Color by the End of this Century," 5 Feb. 2019 During photosynthesis, the chlorophyll in the phytoplankton absorbs the blue light on the spectrum, making algae-rich regions appear greener. Jill Kiedaisch, Popular Mechanics, "Half of the World's Oceans Will Change in Color by the End of this Century," 5 Feb. 2019 Drink a shot of chlorophyll every morning to brighten, oxygenate, and hydrate your skin. Candace Bryan, Good Housekeeping, "15 Things Women With Perfect Skin Do Every Day," 4 Sep. 2015 When days begin to grow shorter, deciduous (green leafy) trees start signaling their leaves to stop producing chlorophyll, the green pigment responsible for the leaves’ color and photosynthesis. Brian Resnick, Vox, "When and where fall foliage colors will peak, in one map," 13 Oct. 2018 The Royal Fern Skin Illuminating Ampoules are jam-packed with brightening vitamin C, texture-smoothing niacinamide, and anti-inflammatory chlorophyll and designed to be applied post-cleansing, pre-moisturizer. Sarah Kinonen, Allure, "The Importance of Germany in the Skin-Care Industry," 24 Oct. 2018 In the current wellness world of $11 juices made of kale and chlorophyll and a price tag of $85 to freeze your entire body for three minutes, that's a steal. Brooke Bobb, Vogue, "I Paid $25 For a 45-Minute Nap at NYC’s New Sleep Store—and Yes, It Was Dreamy," 13 July 2018 Some use chlorophyll to convert sunlight during photosynthesis and others use rhodopsins, proteins that bind to a form of vitamin A called retina to capture light. Shandria Sutton, Science | AAAS, "New ‘light-eating’ protein discovered in the Sea of Galilee," 5 July 2018

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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Statistics for chlorophyll

Last Updated

24 Mar 2019

Look-up Popularity

Time Traveler for chlorophyll

The first known use of chlorophyll was in 1819

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More Definitions for chlorophyll

chlorophyll

noun

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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More from Merriam-Webster on chlorophyll

Rhyming Dictionary: Words that rhyme with chlorophyll

Spanish Central: Translation of chlorophyll

Nglish: Translation of chlorophyll for Spanish Speakers

Britannica English: Translation of chlorophyll for Arabic Speakers

Britannica.com: Encyclopedia article about chlorophyll

Comments on chlorophyll

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