[ sahy-puh-rey-shuh s, sip-uh- ]
/ ˌsaɪ pəˈreɪ ʃəs, ˌsɪp ə- /


belonging to the Cyperaceae, the sedge family of plants.

Nearby words

  1. cynosure,
  2. cynthia,
  3. cynwulf,
  4. cyo,
  5. cyod,
  6. cypher,
  7. cypress,
  8. cypress knee,
  9. cypress pine,
  10. cypress spurge

Compare sedge family.

Origin of cyperaceous

1850–55; < New Latin Cypēr(us) the typical genus (Latin: kind of rush < Greek kýpeiros a marsh plant) + -aceous Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for cyperaceous


/ (ˌsaɪpəˈreɪʃəs) /


of, relating to, or belonging to the Cyperaceae, a family of grasslike flowering plants with solid triangular stems, including the sedges, bulrush, cotton grass, and certain rushes. Some are grown as water plants or as ornamental grasses; and Cyperus papyrus is the papyrus plantCompare juncaceous

Word Origin for cyperaceous

C19: from New Latin Cypērus type genus, from Latin cypēros a kind of rush, from Greek kupeiros marsh plant, probably of Semitic origin

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