1 De institutione musica ('On the Fundaments of Music', beginning of the 6th c.)  Eclectic treatise influenced by the ancient Greek treatises on the theory and ethics of music, such as those of Aristotle and Ptolemy, Pythagoras and Aristoxenus.
hempen, fibrous(adj) having or resembling fibers especially fibers used in making cordage such as those of jute. fibrous, sinewy, stringy, unchewable(adj) (of meat) full of sinews; especially impossible to chew.
Keratin, collagen, elastin and fibronectin are some examples of fibrous proteins. Fibrous proteins contain repeating sets of amino acid residues that make them both strong and elongated. They are insoluble and carry out important tasks in the body.