ˈt(y)übyələ(r) adjective
Etymology: Latin tubus tube + English -ular — more at tube
1.
a. : having the form of a tube
a tubular process
b. : having or consisting of a tube
a tubular calyx
: made up of tubes : fistulous
a tubular hymenium
c. : provided with tubes
a tubular boiler
: involving the use of tubes or made of tubular stock
a tubular chair
a radiator of tubular construction
2. : relating to or sounding as if produced through tubes
a tubular respiratory sound