noun, plural re·ti·a [ree-shee-uh, -shuh, -tee-uh] /ˈri ʃi ə, -ʃə, -ti ə/.
- a pierced plate on an astrolabe, having projections whose points correspond to the fixed stars.
- a network, as of fibers, nerves, or blood vessels.
noun plural retia (ˈriːʃɪə, -tɪə)
- anatomy any network of nerves or blood vessels; plexus
late 14c., in anatomy, from Latin rete “net” (see reticulate (adj.)). Plural is retia.
n. pl. re•ti•a (rē′tē-ə, rē′shə)
- An anatomical mesh, network, or structure, as of veins, arteries, or nerves.