ge·o·tax·is 
(jē′ō-tăksĭs)
(jē′ō-tăksĭs)n.
Movement of a motile organism using the earth's gravity for orientation.
ge′o·tactic (-tĭk) adj.
ge′o·tacti·cal·ly adv.
- nonresidency
- nonresident
- nonresistance
- nonresistant
- nonrestrictive
- nonreturnable
- nonrigid
- nonscheduled
- nonsectarian
- nonsectarianism
- nonsedating
- nonself
- nonsense
- nonsense verse
- nonsensical
- nonsensicality
- nonsensically
- nonsensicalness
- non sequitur
- nonsexist
- nonsignificance
- nonsignificant
- nonsignificantly
- nonsked
- nonskid