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dorsiferous

[dawr-sif-er-uh s]
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adjective Botany.
  1. borne on the back, as the sori on most ferns.
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Origin of dorsiferous

First recorded in 1720–30; dorsi- + -ferous
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for dorsiferous

dorsiferous

adjective
  1. botany zoology rare bearing or carrying (young, spores, etc) on the back or dorsal surface
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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