#1
tube n. [
tubing] conduit consisting of a long hollow object (usually cylindrical) used to hold and conduct objects or liquids or gases
. wn #2
tube n. [
vacuum tube, thermionic vacuum tube, thermionic tube, electron tube, thermionic valve] electronic device consisting of a system of electrodes arranged in an evacuated glass or metal envelope
. wn #3
tube n. [
pipe] a hollow cylindrical shape
. wn #4
tube v. provide with a tube or insert a tube into
. wn #5
tube v. convey in a tube; "inside Paris, they used to tube mail"
. wn