amendment: Meaning and Definition of

a•mend•ment

1. the act of amending or the state of being amended.
2. an alteration of or addition to a motion, bill, constitution, etc.
3. a change made by correction, addition, or deletion: The editors made few amendments to the manuscript.
4. a soil-conditioning substance that promotes plant growth indirectly by improving such soil qualities as porosity, moisture retention, and pH balance.