Here's what rhymes with protovertebral.
vertebral intervertebral Words that almost rhyme with protovertebral
cervical discernible versatile workable burnable circuital revertible terminal observable reversible convertible germinal virginal unsearchable urinal irreversible purposeful transferable unworkable worshipful returnable indiscernible turnbuckle conferrable impersonal interpersonal nonconvertible nontransferable nonreturnable