noun Eo·sper·ma·top·ter·is \ˌē(ˌ)ōˌspərməˈtäptərə̇s\

Definition of Eospermatopteris

  1. :  a genus of fossil seed ferns of the Devonian Lavive structure and terminal sporangia similar to those of Psilophyton but lacking the leafiness of the Carboniferous and later ferns

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Origin and Etymology of eospermatopteris

New Latin, from eo- + spermat- + -pteris

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to criticize severely

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