The Collaborative International Dictionary
Successionally
Successional \Suc*ces"sion*al\, a.
Of or pertaining to a succession; existing in a regular
order; consecutive. ``Successional teeth.''
--Flower. --
Suc*ces"sion*al*ly, adv.
Wiktionary
successionally
adv. In terms of, or by means of, succession.