<p><strong>Noun:</strong></p><ul><li>a piece of blotting paper used to absorb excess ink, to protect a desk top, etc.</li><li>a book in which transactions or events, as sales or arrests, are recorded as they occur: a police blotter.</li><li>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.</li></ul>