pericycle

/per-uh-sahy-kuhl/US // ˈpɛr əˌsaɪ kəl //UK // (ˈpɛrɪˌsaɪkəl) //

周轮,周缘,周缘植物,周边环境

Definitions

n.名词 noun

1
Botany.
- : the outermost cell layer of the stele in a plant, frequently becoming a multilayered zone.

I am pointing now to the south side of Main Street, approximately in front of the concrete pylon of the south pericycle structure.
The irritated pericycle and cortex then grow and form nodules of soft juicy root-tissue at which the insect continues to suck.
The number of xylem groups is fairly large and the development of the xylem is from the pericycle towards the centre of the stele.