Definitions for "SLCM"
Sea Launched Cruise Missile. See; Cruise Missile.
Submarine Launched Cruise Missile.
Submarine-launched cruise missiles or SLCM's are cruise missiles that deliver conventional (non-nuclear) payloads and are launched from submarines. Current versions are typically standoff weapons which are used to attack predetermined land targets.
Scanning Laser Confocal Microscopy ( see CSLM)