Definition of pre-preferential in US English:

pre-preferential

adjective

Finance
  • Of, designating, or relating to pre-preference bonds, shares, claims, etc.

Origin

Mid 19th century; earliest use found in The Times. From pre- + preferential, after pre-preference.

Pronunciation

pre-preferential

/priːˌprɛfəˈrɛnʃl/