Early 19th century; earliest use found in Thomas Nuttall (1786–1859), botanist. From post-classical Latin aculeolatus from aculeolus little prickle + -ātus.
Definition of aculeolate in US English:
aculeolate
adjective
Botany
Having small prickles or sharp points.
Origin
Early 19th century; earliest use found in Thomas Nuttall (1786–1859), botanist. From post-classical Latin aculeolatus from aculeolus little prickle + -ātus.