constituting a tube; having hollow tubes (as for the passage of fluids)
a thing constructed; a complex entity constructed of many parts
the manner of construction of something and the arrangement of its parts
the complex composition of knowledge as elements and their combinations
a particular complex anatomical part of a living thing
give a structure to
conduit consisting of a long hollow object (usually cylindrical) used to hold and conduct objects or liquids or gases
electronic device consisting of a system of electrodes arranged in an evacuated glass or metal envelope
