Definition of supportation in US English:

supportation

noun

  • 1Assistance, backing; = "support". Now rare.

  • 2Chemistry. The process or technique of affixing a catalyst to an appropriate supporting material.

Origin

Late Middle English; earliest use found in Geoffrey Chaucer (c1340–1400), poet and administrator. From (i) Anglo-Norman supportacion maintenance, upkeep, support, Middle French supportation help, financial backing.

Pronunciation

supportation

/ˌsʌpɔːˈteɪʃn/