coccidioidin
noun
coc·cid·i·oi·din
-ˈȯid-ᵊn, -ˈȯi-ˌdin 
: an antigen derived from a fungus of the genus Coccidioides (C. immitis) while in its mycelial phase and used to detect skin sensitivity to and, by inference, infection with this organism compare spherulin
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“Coccidioidin.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/coccidioidin. Accessed 26 Nov. 2024.
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