di·at·ro·pism 
(dī-ătrə-pĭz′əm)
(dī-ătrə-pĭz′əm)n.
Growth of a plant part at a right angle to the direction of an external stimulus, such as gravity.
di′a·tropic (dī′ə-trōpĭk) adj.
- specific gravity
- specific heat
- specific humidity
- specific impulse
- specificity
- specific performance
- specific resistance
- specific thrust
- specifier
- specify
- specimen
- speciosity
- specious
- speciously
- speciousness
- speck
- speckle
- speckled
- speckled perch
- speckled trout
- specks
- specs
- spectacle
- spectacled
- spectacled bear