Proteins rhymes with:
protein's, protein's, protein's, argentines, bernstein's, carotenes, feldstein's, finkelstein's, hammerstein's, libertines, mangosteens, nicotine's, philistines, protein's, quarantines, seventeens, springsteen's, thirteen's
Proteins sounds like:
parading, paradyne's, pardoning, pardons, parting, partitioning, partitions, partying, pertaining, pertains, pirating, porting, portions, predominance, preteens, pretense, pretenses, prodding, protein's, proteinaceous, proton's, protons, prudence, prudency, puritans