sonorous
so.no.rous \s*-'no-r-*s, -'no.r-; 'sa:n-*-r*s\ aj [L sonorus; akin to L sonus sound] 1: producing sound (as when struck) 2: full or loud in sound : RESONANT 3: imposing or impressive in effect or style 4: having a high or an indicated degree of sonority {~ sounds like /a:/ and /o./} - so.no.rous.ly av