calendulin

noun

ca·​len·​du·​lin -lən How to pronounce calendulin (audio)
: a yellowish pigment that is the physiologically active substance in calendula

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calendula
calendulin
calf
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“Calendulin.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/calendulin. Accessed 4 Oct. 2026.

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