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Medical Definition of Sporothrix
1. A genus of dimorphic imperfect fungi, including the species Sporothrix schenckii, an organism of worldwide distribution and the causative agent of sporotrichosis in man and animals, which grows in soil or vegetation, especially in thorny bushes, and is acquired by man when infected thorns are introduced into subcutaneous tissues; at 37°C it grows as a yeast and parasitises tissues as a yeast. Origin: Mod. L., fr. G. Sporos, seed, + thrix, hair (05 Mar 2000)