NumberMultiplier is an option for NumberForm and related functions which gives the string to use as a multiplication sign in scientific notation.
The default is NumberMultiplier -> "\[Times]".
In OutputForm, \[Times] is rendered as x.
See The Mathematica Book: Section 2.8.7.
THIS IS DOCUMENTATION FOR AN OBSOLETE PRODUCT.
SEE THE DOCUMENTATION CENTER
FOR THE LATEST INFORMATION.