A defect in a program code or in designing a routine or a computer.

1. A semiautomatic code-sending telegraph key in which movement of a lever to one side produces a series of correctly spaced dots and movement to the other side produces a single dash.

2. An electronic listening device, generally concealed, used for commercial or military espionage.

1. A defect or imperfection present in a piece of equipment.

2. See <<bullet>>

Any insect in the order Hemiptera.