SPHENOPSID


Meaning of SPHENOPSID in English

transcription, транскрипция: [ sfi-ˈnäp-səd ]

noun

Etymology: ultimately from Greek sphēn wedge + New Latin -opsis

Date: 1957

: any of a class or division (Sphenopsida or Sphenophyta) of primitive vascular plants characterized by jointed ribbed stems, small leaves usually in whorls at distinct stem nodes, and sporangia in sporangiophores and made up of the horsetails and extinct related forms

Merriam-Webster's Collegiate English vocabulary.      Энциклопедический словарь английского языка Merriam Webster.