Pentastichous

1 definition found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Pentastichous \Pen*tas"ti*chous\, a. [Penta- + Gr. sti`chos a
     row.] (Bot.)
     Having, or arranged in, five vertical ranks, as the leaves of
     an apple tree or a cherry tree.
     [1913 Webster]