Main Entry: spi·ro·chet·osis Variant: or chiefly Britishspi·ro·chaet·osis/"spI-r&-"kEt-'O-s&s/ Function:noun Inflected Form: pluralspi·ro·chet·oses/-"sEz/ : infection with or a disease caused by spirochetes
spirochetosis spi·ro·che·to·sis (spī'rə-kē-tō'sĭs) n.pl.spi·ro·che·to·ses (-sēz) Any of various diseases, such as syphilis, caused by infection with spirochetes.