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baculum

noun

bac·​u·​lum ˈbak-yə-ləm How to pronounce baculum (audio)
plural baculums -ləmz How to pronounce baculum (audio) or bacula -lə How to pronounce baculum (audio)
: a slender bone reinforcing the penis in many mammals

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Cite this Entry

“Baculum.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/baculum. Accessed 29 Nov. 2025.

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