Tetrahedral rhymes with:
octahedral, octahedral, cathedral, octahedral, cathedral, dodrill, mandrell, octahedral, scoundrel, amoral, ancestral, antiviral, apparel, april, aprile, aral, astral, aural, auroral, austral, balmoral, baril, barile, barrel, behrle, berrill, beryl, beyerle, boral, borel, borell, bottrell, buehrle, burel, burell, burrill, byrle, cabral, cantrall, carle, carol, carole, carrel, carrol, carroll, caryl, cathedral, central, cerebral, ceryl, charyl, cheryl, choral, cockrell, cockrill, coral, corle, cottrill, curle, cuthrell, cutrell, cyril, darrel, darrell, darryl, daryl, debruhl, delaurel, delreal, demirel, deryle, dibrell, dodrill, durall, durell, durrell, entrail, erle, erol, errol, fackrell, farrel, feral, ferol, ferrall, floral, futral, gabrall, gambrel, gambrell, garrol, gartrell, gatrell, goral, gural, harle, harral, harrel, harrell, harrill, herrell, herrle, horrell, hurrell, immoral, imperil, integral, intramural, jaryl, jerel, jheryl, kapral, karel, karle, kimbrel, kimbrell, kittrell, koral, kouril, laurel, littrell, loral, luttrell, luttrull, mandrell, mccarrell, mccarroll, merrell, merrill, meryl, meryll, ministral, minstrel, mistral, mitral, monreal, moral, morell, mural, murrell, murrill, neural, neutral, norell, norrell, o'carroll, o'farrell, ocarroll, octahedral, ofarrell, oral, orchestral, orel, parrill, pekrul, peril, pickrel, pickrell, plural, pork-barrel, purile, quarrel, reloral, rural, scoundrel, serle, several, sharyl, sherrell, sheryl, shirrell, sorel, sorell, sorrel, sorrell, sperle, spiral, sterile, sterle, sumrall, surrell, tearle, terral, terrel, terrell, terrill, there'll, therrell, thorell, turrell, turrill, tyrell, ural, ventral, verrall, vertebral, viral, virile, wehrle, werle, woehrle, worrall, worrel, worrell
Tetrahedral sounds like:
territorial, territorially, tortorella, tortorelli, tortorello, tortoriello