geotactically

geotaxis

[jee-oh-tak-sis]
noun Biology.
oriented movement of a motile organism toward or away from a gravitational force.

Origin:
1960–65; geo- + -taxis

geotactic [jee-oh-tak-tik] , adjective
geotactically, adverb
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World English Dictionary
geotaxis (ˌdʒiːəʊˈtæksɪs)
 
n
movement of an organism in response to the stimulus of gravity
 
geo'tactic
 
adj
 
geo'tactically
 
adv

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