Tubulate v.

[f. as prec.: see -ATE³; cf. tubulation.] trans. a. To form into a tube. b. ‘To furnish with a tube’ (Cent. Dict., 1891).

1802.  W. Taylor, in Monthly Mag., XIII. 207. A wooden cullender … the orifices of which have in the center a wire or skewer, which tubulates the extruded dough [macaroni].