- For a given pulse, the time interval that elapses between the end of the rise time and the start of the decay time. The pulse duration may also be defined in other manners, such as the time interval between the 50% points of peak pulse amplitude. Also called width (2). Also known as pulse length, or pulse width, although both are deprecated terms.
- The time interval that a pulse is emitted or transmitted. For example, the time during which a radar pulse is transmitted.
- noun a type of blister and vomiting agent.