/blot"euhr/ , n.
1. a piece of blotting paper used to absorb excess ink, to protect a desk top, etc.
2. a book in which transactions or events, as sales or arrests, are recorded as they occur: a police blotter.
3. Mach. a soft washer of blotting paper or felt for cushioning a brittle object against shock or pressure or for increasing the friction or contact area between two surfaces.
[ 1585-95; 1887 for def. 2; BLOT 1 + -ER 1 ]