A piece of blotting paper in a pad as a piece of desk furniture. / (law enforcement) A daily register of arrests and other events in a police station.

plural of blotter

(US) A register, maintained by the desk sergeant, of people arrested or brought in for questioning to a police station; (UK) charge sheet. / (US) A newspaper column publishing highlights therefrom.

(business) a record of each trade that was transacted for a given period of time, usually one day

plural of trade blotter

plural of police blotter

Blotter paper impregnated with the drug LSD, to be taken orally.

Resembling blotting paper.