• synonyms


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  1. a fungus of the genus Geaster, having an outer covering that splits into the form of a star.
  2. any of various bromeliads of the genus Cryptanthus, native to Brazil, having rosettes of stiff, prickly leaves.

Origin of earthstar

First recorded in 1810–20; earth + star
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for earthstar


  1. any of various basidiomycetous saprotrophic woodland fungi of the genus Geastrum, whose brown onion-shaped reproductive body splits into a star shape to release the spores
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