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[tuh-rid-uh-fahyt, ter-i-doh-] /təˈrɪd əˌfaɪt, ˈtɛr ɪ doʊ-/
any plant of the division Pteridophyta, characterized by vascular tissue and differentiation into root, stem, and leaves, comprising the ferns, horsetails, and club mosses.
Origin of pteridophyte
1875-80; < New Latin Pteridophyta; see pterido-, -phyte
Related forms
[tuh-rid-uh-fit-ik, ter-i-doh-] /təˌrɪd əˈfɪt ɪk, ˌtɛr ɪ doʊ-/ (Show IPA),
[ter-i-dof-i-tuh s] /ˌtɛr ɪˈdɒf ɪ təs/ (Show IPA),
adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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British Dictionary definitions for pteridophyte


(in traditional classification) any plant of the division Pteridophyta, reproducing by spores and having vascular tissue, roots, stems, and leaves: includes the ferns, horsetails, and club mosses. In modern classifications these plants are placed in separate phyla
Derived Forms
pteridophytic (ˌtɛrɪdəʊˈfɪtɪk), pteridophytous (ˌtɛrɪˈdɒfɪtəs) adjective
Word Origin
C19: from pterido-, from Greek pteris fern + -phyte
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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pteridophyte in Science
  (tə-rĭd'ə-fīt', těr'ĭ-dō-)   
Any of various vascular plants that reproduce by spores rather than seeds; a seedless vascular plant. The pteridophytes include the lycophytes, the horsetails, and the ferns, as well as a small group of related plants called the psilophytes and several extinct phyla.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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