carmalum

noun

carm·al·um kar-ˈmal-əm

: a stain composed of carminic acid, alum, and water for use in microscopy

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

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