hybridisation

/HH AY1 B R AH0 D AH0 Z EY1 SH AH0 N/
noun
  1. 1

    The act of hybridizing, or the state of being hybridized.

  2. 2

    The conversion of a fleet of vehicles to hybrids.

Source: https://en.wiktionary.org/wiki/hybridisation, https://en.wiktionary.org/wiki/hybridization