arboreal
- a of or relating to or formed by trees
- a inhabiting or frequenting trees
arboreal apes - s resembling a tree in form and branching structure
arboreous
- a inhabiting or frequenting trees
- s abounding in trees
an arboreous landscape - s resembling a tree in form and branching structure
arborescent
- s resembling a tree in form and branching structure
arborescent coral found off the coast of Bermuda
arcadian
- n an inhabitant of Arcadia
- s (used with regard to idealized country life) idyllically rustic
a country life of arcadian contentment
arcane
- s requiring secret or mysterious knowledge
the arcane science of dowsing
arch
- n a curved shape in the vertical plane that spans an opening
- n a curved bony structure supporting or enclosing organs (especially the inner sides of the feet)
- n a passageway under a curved masonry construction
they built a triumphal arch to memorialize their victory - n (architecture) a masonry construction (usually curved) for spanning an opening and supporting the weight above it
- v form an arch or curve
her back arches - s (used of behavior or attitude) characteristic of those who treat others with condescension
- s expert in skulduggery
an arch criminal - s naughtily or annoyingly playful