complex body part vs gill slit

Other hyponyms of complex body part include layer, apodeme, caliculus, calycle, calyculus, tooth, pad, branchial cleft, gill cleft, branchial arch, gill arch, gill bar, peristome, syrinx, bulb, carina, cauda, chiasm, chiasma, decussation, cingulum, concha, filament, filum, germ, infundibulum, interstice, landmark, limbus, rib, blade, radicle, plexus, rete, tube-shaped structure, tube, passage, passageway, fundus, funiculus, head, bodily cavity, cavity, cavum, root, capsule, uvea, lens nucleus, nucleus, membranous labyrinth, bony labyrinth, osseous labyrinth, glans, alveolar bed, valve, vascular structure, lacrimal apparatus, cytoskeleton, nucleolar organiser, nucleolar organizer, nucleolus organiser, nucleolus organizer, centromere, kinetochore, aster, neural structure, fold, plica, convolution, gyrus, cartilaginous structure, ball, plate, horny structure, unguis, skeletal structure, costa, head, bridge, rotator cuff, cornu, corona, receptor, zona, zone.