What Is the other name for Rayon Fiber?

Rayon is a fibre that is made from cellulose that is chemically converted from wood pulp. 

Viscose, Cuprammonium, Bemberg rayon, nitro silk, acetate, modal and lyocell are all types of rayon, as is most 'bamboo' fabric – which is rayon made from bamboo rather than other cellulose bases.  Viscose term is being used for the viscous organic liquid used to make both rayon and cellophane. It can be said that Viscose is called Rayon in the USA.