arc
bow
catacaustic
catenary
caustic
circle
conchoid
crook
curl
curve
diacaustic
festoon
hook
hyperbola
lituus
oval
ovoid
ovule
parabola
sinus
tracery
conic
ellipsis
focus
conic section
ellipsoid
elliptical
parallelogram
rectangle
semicircle
Crips
Flips
Scripps
blips
chips
clips
crips
dips
drips
eclipse
equips
flips
grips
hips
lips
microchips
nips
outstrips
pips
quips
rips
scripts
ships
sips
skips
slips
snips
strips
thrips
tips
trips
whips
zips