What is the opposite of "personification"?

I want a word that means the opposite of personification.

What is the correct word for describing people with the characteristics of an object/as if they are objects?

I found the word chremamorphism on some forums, but it doesn't seem to be included in the two online dictionaries I searched.

Solution 1:

Objectification seems apt to me.

Solution 2:

Depending on the context, perhaps "dehumanization" might be an apt term.

Solution 3:

I always liked reification. It's primary meaning is making abstract things concrete, but it can also be used as a synonym to dehumanization. The nice thing about reification-personification opposition is that the words are symmetrical (rei + ficare, personae + ficare).