piedra

noun

pie·dra pē-ˈā-drə

: a fungus disease of the hair marked by the formation of small stony nodules along the hair shafts

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“Piedra.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/piedra. Accessed 3 Nov. 2025.

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