Read the dictionary definition of altered. All definitions for this word.
1. changed in form or character without becoming something else
1. the altered policy promised success
2. following an altered course we soon found ourselves back in civilization
3. he looked...with clouded eyes and with an altered manner of breathing
2. changed in order to improve or made more fit for a particular purpose
1. seeds precisely adapted to the area
2. instructions altered to suit the children's different ages
3. having testicles or ovaries removed