plural noun
Ly·​cop·​si·​da | \ līˈkäpsədə\

Definition of Lycopsida

: a subdivision of Tracheophyta coextensive with the class Lycopodineae comprising vascular plants (as the club mosses and related forms) with small leaves, sessile and adaxial sporangia, and no leaf gaps in the primary vascular cylinder — compare psilopsida , pteropsida , sphenopsida

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History and Etymology for Lycopsida

New Latin, from Latin lycopsis, a plant + New Latin -ida

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miscellaneous remnants or debris

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