opisthotonos
noun
op·is·thot·o·nos
ˌäp-əs-ˈthät-ᵊn-əs 
: a condition of spasm of the muscles of the back, causing the head and lower limbs to bend backward and the trunk to arch forward
Cite this Entry
“Opisthotonos.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/opisthotonos. Accessed 3 Dec. 2025.
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