• synonyms


[ ree-tee ]
/ ˈri ti /

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.


web, mesh, system

Nearby words

retarget, retch, retcon, retd, retd., rete, rete arteriosum, rete articulare, rete cutaneum corii, rete mirabile, rete ovarii

Origin of rete

1350–1400; Middle English riet < Latin rēte net
Related formsre·ti·al [ree-shee-uh l] /ˈri ʃi əl/, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for retia

  • But, as is well known, retia are also found in other mammals far removed in the series from these under consideration.

    The Cambridge Natural History, Vol X., Mammalia|Frank Evers Beddard
  • Tamandua has also retia, which are also found in the Spider-monkeys.

  • Some of the internal arteries of Whales break up into retia mirabilia.

  • In both, retia mirabilia are developed in the tail (in spite of its reduction in the Sloths) and in the limbs.

British Dictionary definitions for retia


/ (ˈriːtɪ) /

noun plural retia (ˈriːʃɪə, -tɪə)

anatomy any network of nerves or blood vessels; plexus
Derived Formsretial, adjective

Word Origin for rete

C14 (referring to a metal network used with an astrolabe): from Latin rēte net
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for retia



late 14c., in anatomy, from Latin rete "net" (see reticulate (adj.)). Plural is retia.

Online Etymology Dictionary, © 2010 Douglas Harper

Medicine definitions for retia


[ rētē ]

n. pl. re•ti•a (tē-ə, rēshə)

An anatomical mesh, network, or structure, as of veins, arteries, or nerves.
Related formsreti•al (-tē-əl, -shəl) adj.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.