Alteration :: Alteration (n.) The act of altering or making different.
Alteration :: Alteration (n.) The state of being altered; a change made in the form or nature of a thing; changed condition.
Alterative :: Alterative (a.) Gradually changing, or tending to change, a morbid state of the functions into one of health..
Alterative :: Alterative (n.) A medicine or treatment which gradually induces a change, and restores healthy functions without sensible evacuations..