hy·drot·ro·pism 
(hī-drŏtrə-pĭz′əm)
(hī-drŏtrə-pĭz′əm)n.
Growth or movement in a sessile organism toward or away from water, as of the roots of a plant.
hy′dro·tropic (hī′drə-trōpĭk) adj.
- digger wasp
- diggings
- digging stick
- dight
- digicam
- dig in
- dig in heels
- dig in (one's) heels
- dig in one's heels
- digit
- digital
- digital computer
- digitalin
- digitalis
- digitalization
- digitalize
- digitally
- digital object identifier
- digital rights management
- digital signature
- digital-to-analog converter
- digital watermark
- digitate
- digitated
- digitately