Definition of seasteading in US English:

seasteading

noun

  • The practice of establishing permanent settlements on structures located in areas of sea outside the jurisdiction of any country.

    ‘he has been a proponent of seasteading’
    as modifier ‘the seasteading movement’

Origin

1960s: blend of sea and homesteading.

Pronunciation

seasteading

/ˈsēˌstediNG//ˈsiˌstɛdɪŋ/