Xss

noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    Abbreviation of cross-site scripting. Internet, abbreviation, alt-of, uncountable

Etymology

The X denotes cross. CSS was avoided because of the potential for confusion with the existing Web technology named cascading style sheets.

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.