per·i·cy·cle 
(pĕrĭ-sī′kəl)
(pĕrĭ-sī′kəl)n.
A plant tissue characteristic of the roots, located between the endodermis and phloem.
[French péricycle, from Greek perikuklos, spherical : peri-, peri- + kuklos, circle; see CYCLE.]
per′i·cyclic (-sīklĭk, -sĭklĭk) adj.