canal

nouns

(astronomy) an indistinct surface feature of Mars once thought to be a system of channels; they are now believed to be an optical illusion
domain category
the branch of physics that studies celestial bodies and the universe as a whole
is a type of (narrower)
a deep and relatively narrow body of water (as in a river or a harbor or a strait linking two larger bodies) that allows the best passage for vessels
"the ship went aground in the channel"
a bodily passage or tube lined with epithelial cells and conveying a secretion or other substance
"the tear duct was obstructed"; "the alimentary canal"; "poison is released through a channel in the snake's fangs"
is derived from
long and narrow strip of water made for boats or for irrigation
is derived from
is derived from
is derived from
is derived from
is a type of (narrower)
a conduit through which water flows

verbs

provide (a city) with a canal
is derived from
is derived from