Definition of geotactic in US English:

geotactic

adjective

Biology
  • See geotaxis

    • ‘The present study was conducted to determine whether A. invadans zoospores show geotactic behaviour compared to other Oomycete genera.’
    • ‘The different geotactic behaviour of the two species of cercariae brings them into the ecological range of their different second intermediate hosts.’
    • ‘As the insect climbs the surface, the geotactic response mode would provide positive reinforcement while the olfactory modality would provide negative reinforcement.’
    • ‘The obstacle wall provides a geotactic barrier by presenting a side wall and an obstacle wall with numerous identical elevations.’
    • ‘However, females fed CeONP during the larval stage demonstrated a 10% increase in retention of the negative geotactic response.’

Pronunciation

geotactic

/-ˈtaktik/