an especially quiet switch that opens and closes an electric circuit by shifting a vial containing a pool of mercury so as to cover or uncover the contacts.
(electrical engineering) a switch in which a circuit is completed between two terminals by liquid mercury when the switch is tilted
an electrical switch that opens and closes a circuit by shifting a vial of mercury to silently cover or uncover the contacts
The mercury switch is very useful for all sorts of applications, from water level sensing to mailbox open/closed.
- Mercury-vapor lamp
[mur-kyuh-ree-vey-per] /ˈmɜr kyə riˌveɪ pər/ noun, Electricity. 1. a lamp producing a light with a high actinic and ultraviolet content by means of an electric arc in mercury vapor.
- Mercury-vapour lamp
noun 1. a lamp in which an electric discharge through a low pressure of mercury vapour is used to produce a greenish-blue light. It is used for street lighting and is also a source of ultraviolet radiation
- Mercy flight
noun 1. an aircraft flight to bring a seriously ill or injured person to hospital from an isolated community
noun 1. (def 1). noun 1. another term for euthanasia mercy killing mer·cy killing (mûr’sē) n. Euthanasia.