Acuteness

Webster's Dictionary of the English Language

·noun Shrillness; high pitch;

— said of sounds.

II. Acuteness ·noun Violence of a disease, which brings it speedily to a crisis.

III. Acuteness ·noun The quality of being acute or pointed; sharpness; as, the acuteness of an Angle.

IV. Acuteness ·noun The faculty of nice discernment or perception; acumen; keenness; sharpness; sensitiveness;

— applied to the senses, or the understanding. By acuteness of feeling, we perceive small objects or slight impressions: by acuteness of intellect, we discern nice distinctions.