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pteridosperm

[tuh-rid-uh-spurm, ter-i-doh-] /təˈrɪd əˌspɜrm, ˈtɛr ɪ doʊ-/
noun
1.
Origin of pteridosperm
1900-1905
1900-05; < New Latin Pteridospermales the order; see pterido-, sperm1, -ales
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Based on the Random House Dictionary, © Random House, Inc. 2017.
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British Dictionary definitions for pteridosperm

pteridosperm

/ˈtɛrɪdəˌspɜːm/
noun
1.
any extinct seed-producing fernlike plant of the group Pteridospermae Also called seed fern
Word Origin
C19: from Greek pteris a fern + -sperm
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
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