'Incremental' definitions:

Definition of 'incremental'

(from WordNet)
adjective
Increasing gradually by regular degrees or additions; "lecturers enjoy...steady incremental growth in salary"

Definition of 'Incremental'

From: GCIDE
  • Incremental \In`cre*men"tal\, a. (Biol.) Pertaining to, or resulting from, the process of growth; as, the incremental lines in the dentine of teeth. [1913 Webster]