Tubulure is a rarely used word that refers to a small tube or a hollow cylinder. There are several synonyms for tubulure that can be used interchangeably depending on the context. Some of the synonyms for tubulure include tube, conduit, pipe, cannula, straw, barrel, shaft, and cylinder. These words are commonly used in different fields such as medicine, engineering, plumbing, and chemistry. For instance, a cannula is a type of tubulure that is used for administering medication or draining fluids from the human body. Similarly, a tube or a pipe can be used to transport gas or liquid from one place to another. Ultimately, the choice of a synonym for tubulure will depend on the specific context in which the word is used.