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单词 hypolimnion
释义

Definition of hypolimnion in English:

hypolimnion

nounPlural hypolimnia ˌhʌɪpə(ʊ)ˈlɪmnɪən-nēən
  • The lower layer of water in a stratified lake, typically cooler than the water above and relatively stagnant.

    Example sentencesExamples
    • MeHg accumulated in the hypolimnion of Lake 240 when oxygen was present.
    • These lakes have permanent thermoclines, small littoral zones, and deep hypolimnia.
    • For the higher concentrations of nitrate and oxygen in the hypolimnion during weeks 15 to 25, another mechanism might be efficacious.
    • The mean acoustic size of rising bubbles decreased in the hypolimnion but increased in the epilimnion.
    • Both ponds are dystrophic, surrounded by extensive mats of Sphagnum, and stratified in summer with anoxic hypolimnia.

Origin

Early 20th century: from hypo- 'below' + Greek limnion (diminutive of limnē 'lake').

Rhymes

epilimnion
 
 

Definition of hypolimnion in US English:

hypolimnion

noun-nēən
  • The lower layer of water in a stratified lake, typically cooler than the water above and relatively stagnant.

    Example sentencesExamples
    • These lakes have permanent thermoclines, small littoral zones, and deep hypolimnia.
    • MeHg accumulated in the hypolimnion of Lake 240 when oxygen was present.
    • For the higher concentrations of nitrate and oxygen in the hypolimnion during weeks 15 to 25, another mechanism might be efficacious.
    • Both ponds are dystrophic, surrounded by extensive mats of Sphagnum, and stratified in summer with anoxic hypolimnia.
    • The mean acoustic size of rising bubbles decreased in the hypolimnion but increased in the epilimnion.

Origin

Early 20th century: from hypo- ‘below’ + Greek limnion (diminutive of limnē ‘lake’).

 
 
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更新时间:2024/11/11 1:07:56