che·mo·tax·is \ˌ ̷ ̷ ̷ ̷+ˈtaksə̇s\noun alsoche·mo·taxy\ˈ ̷ ̷ ̷ ̷+ˌtaksē\ (pluralchemotax·es \-ˈtakˌsēz\ ; alsochemotax·ies \-ˌtaḵsēz\) Etymology:chemotaxis, New Latin, from chem- + -taxis; chemotaxy, International Scientific Vocabulary chem- + -taxy : orientation or movement of cells or organisms in relation to chemical agents — compare taxis 2