Defn: Aculeate. [Obs.] Sir T. Browne.
ACULEUS
A*cu"le*us, n.; pl. Aculei. Etym: [L., dim. of acus needle.]
1. (Bot.)
Defn: A prickle growing on the bark, as in some brambles and roses.
Lindley.
2. (Zoöl.)
Defn: A sting.
ACUMEN
A*cu"men, n. Etym: [L. acumen, fr. acuere to sharpen. Cf. Acute.]
Defn: Quickness of perception or discernment; penetration of mind; the faculty of nice discrimination. Selden.
Syn.
— Sharpness; sagacity; keenness; shrewdness; acuteness.
ACUMINATE A*cu"mi*nate, a. Etym: [L. acuminatus, p. p. of acuminare to sharpen, fr. acumen. See Acumen.]