Attributive designating a switch or other device in which a circuit is completed by tilting a container part-filled with mercury until the mercury comes into contact with electrodes.
Origin
1970s.
Definition of mercury-tilt in US English:
mercury-tilt
adjective
Attributive designating a switch or other device in which a circuit is completed by tilting a container part-filled with mercury until the mercury comes into contact with electrodes.