setiger|ˈsiːtɪdʒə(r)| [a. L. sētiger, sætiger bristle-bearing, f.sēta, sæta bristle + -ger bearing.] A setigerous worm. 1842Brande Dict.Sci. etc., Setigers,..the name of a tribe of Anellidans, including those which like the earthworm, are provided with bristles for progressive motion.