plural troughs
1
: a long, shallow container from which animals (such as cows, pigs, horses, etc.) eat or drink
a water trough
2
: a period in which there is little economic activity and prices are usually low
The economy/business is in a trough right now.
3
: a long, low area between waves or hills
4
weather
: a long, narrow area of low air pressure between two areas of higher pressure
Cite this Entry
“Trough.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/trough. Accessed 11 Jul. 2026.
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