plural of ion trap

(physics) Any of several electromagnetic devices used to capture charged particles

(derogatory) The practice of attempting to trick a consumer into starting a subscription for some product or service.

(economics, in particular New Keynesian economics) circumstance when nominal interest rates are near or at zero and circulating additional money doesn't lower interest rates.

plural of camera trap

A remotely activated camera, triggered by a sensor, used to capture wild animals on film when researchers are not present.

(typography) A sharp recess in an inward corner, present in certain typefaces; when printed, ink fills them (as opposed to having normal corners, resulting in bleeding and loss of crispness).

plural of ink trap

plural of subscription trap

Any material covertly inserted into a copyrighted work in order to identify plagiarized versions.