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| psi·lop·sid [ s lópsid ] (plural psi·lop·sids) |
noun |
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| Definition: |
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simple rootless plant: a simple plant with leaves that are only partly developed and no roots. Psilopsids reproduce by means of spores. Class Psilopsida.
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| [Mid-20th century. < modern Latin Psilopsida, class name] |
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