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Medical Definition of Macroconidium
1. 1. A conidium, or exospore, of large size. 2. In fungi, the larger of two distinctively different-sized types of conidia in a single species, thick-or thin-walled and composed of 2 to 10 cells; characteristic of most dermatophytes and some other genera e.g., Histoplasma, Fusarium. Origin: macro-+ Mod. L. Dim. Fr. G. Konis, dust (05 Mar 2000)