aux·e·sis 
(ôg-zēsĭs, ôk-sē-)
(ôg-zēsĭs, ôk-sē-)n.
Growth resulting from increase in cell size without cell division.
[Greek auxēsis, growth, from auxanein, auxē-, to grow; see aug- in the Appendix of Indo-European roots.]
aux·etic (ôg-zĕtĭk) adj.
aux·eti·cal·ly adv.