Definition of periclinal in English:

Share this entry


Pronunciation: /ˌperəˈklīnl/


1(Of a cell wall) parallel to the surface of the meristem.
Example sentences
  • Guard-cell walls parallel to the root surface are considered periclinal.
  • Superficially it appears to be a periclinal chimera with a chlorophyll-deficient mutation in the second layer of the meristem.
  • Ornamentation of the periclinal walls could be used to discriminate four morphological types.
1.1(Of cell division) taking place by the formation of periclinal walls.
Example sentences
  • In a number of species, regardless of their wall formation type, new periclinal cell divisions may occur when the tapetum differentiates.
  • Most parenchyma cells continue to divide by periclinal divisions.
  • This process is initiated by anticlinal and periclinal divisions of a few callus cells only.



Example sentences
  • Because the aleurone cells continue to divide periclinally in the developing cereal endosperm the youngest cells are present in the sub-aleurone layer and the oldest cells in the central part of the endosperm.
  • The hypodermis is initiated by a separate layer of initials within the apical meristem that divides periclinally at least once to produce a biseriate to multiseriate zone of cells under the epidermis.
  • In the basic type of wall formation, all the cells in the secondary parietal layers divide once periclinally, forming four new layers.


Late 19th century: from Greek periklinēs 'sloping on all sides', from peri- 'around' + klinēs 'sloping' (from the verb klinein).

Share this entry

What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.