Definition of long-acuminate in US English:

long-acuminate

adjective

Botany
  • Having a long tapering point.

Origin

Early 19th century; earliest use found in Curtis's Botanical Magazine. From long + acuminate, after post-classical Latin and scientific Latin oblongo-acuminatus.

Pronunciation

long-acuminate

/lɒŋəˈkjuːmɪnət/