Tailing

Tailing may refer to:
 * Tailings, the material left over after the extraction of ore from its host material
 * Lamb marking, a process applied in sheep husbandry, typically involving removal of a sheep's tail
 * Tailgating, driving on a road too closely behind another vehicle
 * Surveillance, following someone's movements
 * Polyadenylation, adding a poly(-A) tail to a nucleic acid