aëration
airing
arterialization
action
activity
change of state
natural action
natural process
aerate
aerated
camber
colostomy
conservancy
cross-gartered
cystostomy
debridement
fire-apparatus
gold-edged
low-heeled
open-toed
oxygenation
perfusion
permittivity
porosity
second-growth
snakeskin
strappy
two-speed