sigmoidal
Cynthian
S-shaped
ambagious
anfractuous
bicorn
circuitous
circumlocutory
convolutional
corniform
crescent
crescent-shaped
crescentic
crescentiform
crescentlike
falcate
falciform
flexuose
flexuous
horn-shaped
horned
involute
involuted
involutional
labyrinthine
lunar
lunate
luniform
lunular
mazy
meandering
meandrous
menisciform
meniscoid
moon-shaped
moonlike
rivose
rivulose
roundabout
ruffled
semicircular
semilunar
serpentine
sickle-like
sickle-shaped
sinuate
sinuose
sinuous
snaky
torsional
addressable
autocalibration
autocrine
bistable
bya
ensemble-average
fractional-n
ironsulfur
motion-control
multiline
normally-open
phase-lock
phase-locked
pre-built
spastic
timelike
upward-sloping
wet-looking