n. alimentary canal
birth canal
ear canal
haversian canal
resin canal
root canal
semicircular canal
spinal canal
stone canal
vertebral canal
Caledonian Canal
Canal Zone
Panama Canal Zone
Erie Canal
Grand Canal
Hood Canal
Lynn Canal
New York State Barge Canal
Portland Canal
Rideau Canal
Suez Canal
Trent Canal
Welland Canal
Welland Ship Canal
Sault Sainte Marie Canals
Soo Canals