monestrous
adjective
mon·es·trous
(ˌ)mä-ˈne-strəs 
: experiencing estrus once each year or breeding season
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“Monestrous.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/monestrous. Accessed 3 Jul. 2025.
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monestrous
adjective
mon·es·trous
(ˈ)mä-ˈnes-trəs
variants
or chiefly British monoestrous
: experiencing estrus once each year or breeding season
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