a genus of extremely slender aerobic spirochetes (family Leptospiraceae) that are free-living or parasitic in mammals and include a number of important pathogens (as L. icterohaemorrhagiae of Weil's disease or L. canicola of canicola fever)
leptospira
noun(lep-to-spi-ra)
leptospire
leptospira
noun(lep-to-spi-ra)
any spirochete of the genus Leptospira —called also leptospira