explosion
abstract
area
arrow
burst
center
circle
circular
concentric
confluence
conflux
converging
cursor
diffuse
diffusion
disperse
distribute
distribution
element
emission
epicenter
expand
expansion
extend
focus
growth
increase
index
line
lines
midpoint
orientation
outside
pointer
radial
radiance
radiant
radiating
radiation
radius
ray
scatter
shape
spokes
spray
spread
stripe
widespread