Definition of aculeiform in English:

aculeiform

adjective

Botany Zoology Ophthalmology
  • Having the form of a spine or prickle; (Ophthalmology, of a cataract) having needle-like projections.

Origin

Early 19th century. From post-classical Latin aculeiformis pointed, spine-shaped from classical Latin acūleus + -formis.

Pronunciation:

aculeiform

/əˈkjuːlɪɪfɔːm/