Tubule rhymes with:
microtubule, microtubule, microtubule, microtubule, miniscule, ovule, samuel, dubreuil, microtubule, miniscule, module, nodule, otoole, ovule, reichstuhl, reschedule, samuel, youell
Tubule sounds like:
table, tableau, tadpole, tafel, taffel, tafolla, tapley, tavel, teeple, teply, teufel, theophila, tidball, tipple, tivoli, topel, topol, topple, tubal, tupelo, tuvalu, typeable