proteinaceous
pro.tein.aceous \.pro--.te--'na--sh*s, .pro-t-e--*-'na--\ aj : of, relating to, resembling, or being protein
Webster's English Dictionarypro.tein.aceous \.pro--.te--'na--sh*s, .pro-t-e--*-'na--\ aj : of, relating to, resembling, or being protein