SPHENOPSID
Meaning of SPHENOPSID in English
/sfi nop"sid/ , n.
equisetoid.
[ 1955-60; Sphenopsida the order which includes horsetails; see SPHEN-, -OPSIS, -ID 2 ]
Random House Webster's Unabridged English dictionary.
Полный английский словарь Вебстер - Random House .
2012