duct

nouns

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"
canal, channel, duct, epithelial duct
a continuous tube formed by a row of elongated cells lacking intervening end walls
duct
is a part of
green plant having a vascular system: ferns, gymnosperms, angiosperms
tracheophyte, vascular plant
is a type of (narrower)
any part of a plant or fungus
plant part, plant structure
an enclosed conduit for a fluid
duct
is a type of (narrower)
a passage (a pipe or tunnel) through which water or electric wires can pass
"the computers were connected through a system of conduits"
conduit