canal

noun
B2+
1
B2+
a long straight passage dug in the ground and filled with water for boats and ships to travel along; a smaller passage used for carrying water to fields, crops, etc.
کانال, آبراه, آبراهه, راه آبی
2
a tube inside the body through which liquid, food or air can pass
مجرا, لوله
see also alimentary canal, ear canal, root canal