Wiktionary

x unit

English

edit
 
English Wikipedia has an article on:
Wikipedia

Noun

edit

x unit (plural x units)

  1. A unit of length (symbol xu) approximately equal to 0.1 picometres, used to quote the wavelength of X-rays and gamma rays.
    Synonym: Siegbahn unit
Retrieved from "https://en.wiktionary.org/w/index.php?title=x_unit&oldid=74848690"