🇨🇳Chinese Source WordCode: ZH

透光带

Pronunciation / Transliteration: tòu guāng dài

🇬🇧 Direct English Meaning:
Photic Zone/ˈfoʊ.tɪk zoʊn/
nounCEFR C1 (Advanced)Top #45200 frequency
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🇨🇳 Example Sentence in Chinese:

"绝大多数海洋生物都生活在透光带中。"

Comprehensive Definitions & Senses

2 senses
As noun
  1. 1

    The surface layer of an ocean or lake that is illuminated by sunlight, allowing photosynthesis to take place.

    "Most marine life, including phytoplankton and coral reefs, is concentrated within the photic zone where light is plentiful."
  2. 2

    The upper portion of the aquatic ecosystem where light penetration supports primary production.

    "Divers observed a significant drop in temperature and light intensity as they descended past the lower boundary of the photic zone."

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Antonyms & Contrasting Words (1)

Linguistic Origin & Historical Etymology

Derived from the Greek word phōs (genitive phōtos), meaning 'light', combined with the Greek zōnē, meaning 'belt' or 'zone'. Coined in oceanography in the mid-20th century to designate the upper layer of a body of water that receives sufficient sunlight for photosynthesis to occur.

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