slider

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slider

[′slīd·ər]
(electricity)
Sliding type of movable contact.
(ordnance)
A fuse or exploder component that interrupts the explosive train when the device is in the unarmed condition, and that moves during arming in such a way as to render the explosive train operative.

slider

A block of material that holds the read/write head of a magnetic disk. See flying head.