amplitude
apse
arcade
arcature
arch
arched roof
archway
bellying
bulging
ceilinged roof
concameration
concha
convexedness
convexity
convexness
cove
cupola
dome
excurvation
excurvature
flight path
geodesic dome
gibbosity
gibbousness
igloo
keystone
ogive
skewback
skin effect
skin friction
slip
span
stagger
tuberosity
tuberousness
vault
vaulting
voussoir
hogback
alignment
arc
convex shape
curve
incline
side
slope
cambered
cambering
cambers
45-degree
45degree
aeration
afforestation
bridebed
colostomy
conservancy
cystostomy
forty-five-degree
freeplay
pullulation
puttee
second-growth
sewerage
thingto
thirty-degree
trundle-bed
Amber
amber
clamber