chloroplast

noun
chlo·​ro·​plast | \ ˈklȯr-ə-ˌplast How to pronounce chloroplast (audio) \

Definition of chloroplast

: a plastid that contains chlorophyll and is the site of photosynthesis — see cell illustration

Other Words from chloroplast

chloroplastic \ ˌklȯr-​ə-​ˈpla-​stik How to pronounce chloroplast (audio) \ adjective

Examples of chloroplast in a Sentence

Recent Examples on the Web This green algae Spirogyra has one of the most fascinating chloroplast shapes of all algae – a helical shape, or spiral. Alan Taylor, The Atlantic, 20 Oct. 2021 In that scenario, chloroplast maintenance could fall to the wayside. Katherine J. Wu, The Atlantic, 28 Sep. 2021 Several chloroplast-hoarding sea-slug species will live longer and grow larger when allowed to soak up sunlight. Katherine J. Wu, The Atlantic, 28 Sep. 2021 The plants seemed to have simply ditched their entire chloroplast genome. Quanta Magazine, 21 Apr. 2021 In fact, the entire 150-kilobase chloroplast genomes had been transferred intact, not as naked DNA fragments haphazardly recombined among other genes. Quanta Magazine, 20 Jan. 2021 With fans barred from M&T Bank Stadium for at least the initial part of this NFL season, the Ravens are offering a COVID-19-friendly alternative: chloroplast cutouts. Jonas Shaffer, baltimoresun.com, 31 Aug. 2020 Energy-producing mitochondria power all complex cells; chloroplasts, where photosynthesis takes place, make plant life possible. Elizabeth Pennisi, Science | AAAS, 14 Nov. 2019 When eukaryotic cells first absorbed the cyanobacteria that became chloroplast—a light-absorbing organelle—photosynthesis became a powerful driver of life on Earth. Viviane Callier, Smithsonian, 23 Oct. 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'chloroplast.' 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 chloroplast

1887, in the meaning defined above

History and Etymology for chloroplast

International Scientific Vocabulary

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Time Traveler for chloroplast

Time Traveler

The first known use of chloroplast was in 1887

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Dictionary Entries Near chloroplast

chloropid

chloroplast

chloroplatinate

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Cite this Entry

“Chloroplast.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/chloroplast. Accessed 26 Jan. 2022.

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More Definitions for chloroplast

chloroplast

noun
chlo·​ro·​plast | \ ˈklȯr-ə-ˌplast How to pronounce chloroplast (audio) \

Kids Definition of chloroplast

: one of the tiny parts in a plant cell that contains chlorophyll and is the place where photosynthesis occurs

chloroplast

noun
chlo·​ro·​plast | \ ˈklōr-ə-ˌplast, ˈklȯr- How to pronounce chloroplast (audio) \

Medical Definition of chloroplast

: a plastid that contains chlorophyll and is the site of photosynthesis and starch formation

Other Words from chloroplast

chloroplastic \ ˌklōr-​ə-​ˈplas-​tik, ˌklȯr-​ How to pronounce chloroplast (audio) \ adjective

More from Merriam-Webster on chloroplast

Britannica.com: Encyclopedia article about chloroplast

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