Words That Rhyme With "Rostral" :
2 syllables:
astral, austral, claustral, cloistral, coistrel, costal, costrel, hostel, kestrel, lustral, mistral, nostril, wastrel
3 syllables:
ancestral, cadastral, campestral, orchestral, precostal, subastral, subcostal
4 syllables:
dentirostral, intercostal, Pentecostal