What does morpho mean in uglies?

In Scott Westerfeld's "Uglies" series, "morpho" refers to a type of surgical procedure or transformation that alters an individual's physical appearance. The term is derived from "morph," suggesting a change in form or shape. It highlights the societal pressure to conform to specific beauty standards, as characters undergo these transformations to fit into an idealized version of attractiveness. The concept critiques superficial societal values and the lengths people go to achieve acceptance.