Parastichy

1 definition found

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

  Parastichy \Pa*ras"ti*chy\, n. [Pref. para- + Gr. sti`chos a
     row.] (Bot.)
     A secondary spiral in phyllotaxy, as one of the evident
     spirals in a pine cone.
     [1913 Webster]