🔍 牛津詞典
🔍 朗文詞典
🔍 劍橋詞典
🔍 柯林斯詞典
🔍 麥美倫詞典
🔍 韋氏詞典 🎯

檢索以下詞典:
(Mr. Ng 不推薦使用 Google 翻譯!)
最近搜尋:
TOEFL BNC: 17561 COCA: 17755

photosynthesis

noun

pho·​to·​syn·​the·​sis ˌfō-tō-ˈsin(t)-thə-səs How to pronounce photosynthesis (audio)
: synthesis of chemical compounds with the aid of radiant energy and especially light
especially : formation of carbohydrates from carbon dioxide and a source of hydrogen (such as water) in the chlorophyll-containing cells (as of green plants) exposed to light
photosynthesize intransitive verb
photosynthetic adjective
photosynthetically adverb

Did you know?

Photosynthesis Has Greek Roots

The Greek roots of photosynthesis combine to produce the basic meaning "to put together with the help of light". Photosynthesis is what first produced oxygen in the atmosphere billions of years ago, and it's still what keeps it there. Sunlight splits the water molecules (made of hydrogen and oxygen) held in a plant's leaves and releases the oxygen in them into the air. The leftover hydrogen combines with carbon dioxide to produce carbohydrates, which the plant uses as food—as do any animals or humans who might eat the plant.

Example Sentences

Recent Examples on the Web Eventually, the root will starve and die from lack of photosynthesis. oregonlive, 7 Aug. 2022 Robert Jinkerson, a professor at the University of California, Riverside, looked at the lackluster efficiency of photosynthesis and saw an engineering problem. Wired, 5 July 2022 Green plants get the energy to grow from the sun through the process of photosynthesis. Steven Savage, Forbes, 25 Apr. 2022 The bugs also release a sticky, sugary waste product called honeydew, per the Guardian, which attracts sooty molds that can interfere with plant photosynthesis. Will Sullivan, Smithsonian Magazine, 17 Aug. 2022 Even plants respire, in a process separate from photosynthesis; animals such as jellyfish or earthworms, which lack respiratory systems, breathe through their skin. Brooke Jarvis, The New Yorker, 18 Jan. 2021 In return, the algae make food for the polyps through photosynthesis. Lela Nargi, Washington Post, 16 Aug. 2022 Life on Earth has drastically changed its atmosphere, mainly through photosynthesis, in ways that ordinary chemistry might find hard to mimic. Frank Wilczek, WSJ, 30 July 2022 Ocean oddities called mixoplankton are organisms that can get energy both through photosynthesis and by eating other microbes. Susan Cosier, Scientific American, 19 May 2022 See More

Word History

Etymology

New Latin

First Known Use

1898, in the meaning defined above

Time Traveler
The first known use of photosynthesis was in 1898

👨🏻‍🏫 Mr. Ng 韋氏詞典 📚 – mw.mister5️⃣.net
切換為繁體中文
Site Uptime