beam
blast
burst
bursting
center
centric
centrifugal
circle
circular
circulate
concentric
conflux
converging
density
element
emission
epicenter
expanding
explosion
flare
flicker
geometric
geometry
glare
hedgehog
lineal
linear
lines
merging
midpoint
radar
radial
radiance
radiate
radiating
radiation
radius
ray
rings
ripple
segment
shape
signal
sonar
star
starburst
sunburst
vortex