Pectoral rhymes with:
directoral, electoral, sectoral, directoral, doctoral, electoral, postdoctoral, sectoral, bilateral, collateral, dieterle, directoral, doctoral, electoral, guttural, lateral, literal, litteral, littoral, multilateral, oesterle, pastoral, plurilateral, postdoctoral, sectoral, trilateral, unilateral
Pectoral sounds like:
pastoral, pictorial, postrel, postrelle