formative

Etymology
From.

Adjective

 * 1) Of or pertaining to the formation and subsequent growth of something.
 * 2) Capable of forming something.
 * 3)  Capable of producing new tissue.
 * 4)  Pertaining to the inflection of words.
 * 5)  Denoting forms of assessment used to guide learning rather than to quantify educational outcomes.
 * 1)  Denoting forms of assessment used to guide learning rather than to quantify educational outcomes.

Noun

 * 1)  A language unit that has morphological function.