follow Dictionary.com

Write a Super Short Story to win an iPod!

hypolimnion

[hahy-puh-lim-nee-on, -nee-uh n, hip-uh-] /ˌhaɪ pəˈlɪm niˌɒn, -ni ən, ˌhɪp ə-/
noun, plural hypolimnia
[hahy-puh-lim-nee-uh, hip-uh-] /ˌhaɪ pəˈlɪm ni ə, ˌhɪp ə-/ (Show IPA)
1.
(in certain lakes) the layer of water below the thermocline.
Origin
1905-1910
1905-10; hypo- + Greek límn(ē) lake + -ion diminutive noun suffix
Related forms
hypolimnetic
[hahy-poh-lim-net-ik, hip-oh-] /ˌhaɪ poʊ lɪmˈnɛt ɪk, ˌhɪp oʊ-/ (Show IPA),
hypolimnial, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source
Examples from the web for hypolimnion
  • Tropical lakes and reservoirs are more susceptible to hypolimnion oxygen depletion than their temperate counterparts.
  • Samples from both the epilimnion and hypolimnion are collected monthly during the growing season.
  • Organic matter deposition in the hypolimnion can result in oxygen depletion for a portion of the year.
  • Most of the methylmercury is produced in the dry season in the anoxic portion of the hypolimnion in the reservoirs.
  • The lowest layer of pond water during summer is referred to as the hypolimnion.
  • Zooplankton in all spring casts, though fewer in hypolimnion.
  • Thermal stratification in summer and fall is coupled with anoxic conditions in the hypolimnion.
  • Few zooplankton in springtime epilimnion samples but a moderate amount of copepods in the hypolimnion samples.
  • The aerator does deliver oxygen to the hypolimnion and the lake is not thermally stratified, even in mid-summer.
  • The pond was stratified and although there was a deficiency in the hypolimnion, the thermocline was well oxygenated.
British Dictionary definitions for hypolimnion

hypolimnion

/ˌhaɪpəʊˈlɪmnɪən/
noun
1.
the lower and colder layer of water in a lake
Word Origin
C20: from hypo- + Greek limnion, diminutive of limnē lake
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Cite This Source

Word of the Day

Difficulty index for hypolimnion

Few English speakers likely know this word

Word Value for hypolimnion

0
24
Scrabble Words With Friends