geotaxis

/jee-oh-tak-sis/US // ˌdʒi oʊˈtæk sɪs //UK // (ˌdʒiːəʊˈtæksɪs) //

地轴,地理轴,地轴线,地理轴心

Definitions

n.名词 noun

1
Biology.
- : oriented movement of a motile organism toward or away from a gravitational force.