a. Between tubes or tubules; as, intertubular cells; intertubular substance. [ 1913 Webster ]

a. [ Multi- + tubular. ] Having many tubes; as, a multitubular boiler. [ 1913 Webster ]

a. [ L. tubulus, dim. of tubus a tube, or pipe. See Tube. ] Having the form of a tube, or pipe; consisting of a pipe; fistular; as, a tubular snout; a tubular calyx. Also, containing, or provided with, tubes. [ 1913 Webster ]

Tubular boiler. See under Boiler. --
Tubular breathing (Med.), a variety of respiratory sound, heard on auscultation over the lungs in certain cases of disease, resembling that produced by the air passing through the trachea. --
Tubular bridge, a bridge in the form of a hollow trunk or tube, made of iron plates riveted together, as the Victoria bridge over the St. Lawrence, at Montreal, Canada, and the Britannia bridge over the Menai Straits. --
Tubular girder, a plate girder having two or more vertical webs with a space between them. [ 1913 Webster ]

‖n. [ NL. ] (Zool.) A genus of hydroids having large, naked, flowerlike hydranths at the summits of long, slender, usually simple, stems. The gonophores are small, and form clusters at the bases of the outer tentacles. [ 1913 Webster ]

‖n. pl. [ NL. ] See Tubularida. [ 1913 Webster ]

n. (Zool.) Any hydroid belonging to the suborder Tubularida. [ 1913 Webster ]

☞ These hydroids usually form tufts of delicate tubes, and both gonophores and hydranths are naked. The gonophores of many of the species become free jellyfishes; those of other species remain permanently attached as medusoid buds or sporosacs. See Illust. under Gonosome, and Cymnoblastea. [ 1913 Webster ]

a. (Zool.) Of or pertaining to the tubularians. [ 1913 Webster ]

‖n. pl. [ NL. ] (Zool.) An extensive division of Hydroidea; the tubularians; -- called also Athecata, Gymnoblastea, and Tubulariae. [ 1913 Webster ]