Definition of extensibility in US English:

extensibility

noun

  • See extensible

    • ‘If you don't plan for extensibility when you're designing version 1.0 of your language, you often don't get any.’
    • ‘New systems will bring additional improvements in these areas, but the revolution happens in the extensibility domain.’

Pronunciation

extensibility

/ikˌstensəˈbilədē//ɪkˌstɛnsəˈbɪlədi/