taenia noun4 •A band between the frieze and architrave in the Doric order. •Any species of the genus Taenia of tapeworms. •Any of several ribbon-like bands of tissue.Each taenia traverses one of the following surfaces of the colon: the anterior surface, the posteroinferior surface, and the posterosuperior surface. — 2004 •(historical) A ribbon worn in the hair in ancient Greece.Taenia and ivy leaves are added by hand. Figure wears a taenia horizontally over her brow and a spray of ivy in her hair. — 2002 formstaeniae · taenias