Spirochæta

{ ‖Spi′ro‐chæ″ta (?), ‖Spi′ro‐chæ″te (?), } n. [L. spira a coil + Gr. ��� hair.] (Biol.) A genus of Spirobacteria similar to Spirillum, but distinguished by its motility. One species, the Spirochæte Obermeyeri, is supposed to be the cause of relapsing fever.