voltaic arc
AC arc
Poulsen arc
aperiodic discharge
arc column
arc discharge
arc light
arch
arrow
bend
bow
brush discharge
catacaustic
catenary
caustic
circle
circle segment
circular arc
color filter
conchoid
crook
curl
curvation
curvature
curve
diacaustic
dimmer
directed edge
discharge
disruptive discharge
electric discharge
electric shock
electric spark
electrodeless discharge
ellipse
festoon
floats
flood
floodlight
footlights
foots
galvanic shock
gelatin
glow discharge
hook
hyperbola
klieg light
light plot
lights
arcked
arcking
arced
arcing
arcs
angle
beam
dome
expanse
explosion
flare
flash
globe
glow
loop
rectangle
shaft
slash
spark
sphere
spiral
streak
stroke
surge
sweep
swing
Ark
Clark
Clarke
Lark
Marc
Mark
Merc
Park
Sark
Spark
ark
bark
dark
darke
demark
disembark
embark
hark
lark
marc
mark
marke
marque
merc
narc
park
quark
question-mark
remark
sark
shark
stark