Misspelling of altered.

The act of altering or making different. / The state of being altered; a change made in the form or nature of a thing; a changed condition.

(especially in the plural) An identity or headmate of a person with dissociative identity disorder (previously known as multiple personality disorder). A member of a system.

(medicine, now historical) A medicine or treatment which works by changing processes within the body, rather than by evacuating something etc.

Causing alteration. / (medicine) Gradually changing, or tending to change, a morbid state into a healthy one.

The state or quality of being alterable.

(philosophy, anthropology) Otherness; the entity in contrast to which an identity is constructed.

present participle of alter

alteration

Capable of being changed, changeable, mutable