English

Adjective

aculeous ‎(comparative more aculeous, superlative most aculeous)

1. (obsolete, rare) Pertaining to a needle.
   • 1658: And such an order is observed in the aculeous prickly plantation, upon the heads of several common thistles — Sir Thomas Browne, The Garden of Cyrus (Folio Society 2007, p. 180)