0 an electronic device that is fastened to a person, animal, or object, so that police, scientists, or other people can know where they are or find other information about them:
She is required to wear an electronic tag as part of her bail conditions.
These days, the agriculture industry puts electronic tags on cows' ears and takes retinal scans of their eyeballs.
Electronic tags implanted in salmon can be detected in cormorant droppings.
Electronic tags affixed to bottles of medicine will let drug firms, wholesalers, and pharmacies authenticate drugs sold in the US.
Instead of using traditional pricing labels on shelves, Whole Foods has switched to electronic tags to save time and money.
