Nope, slats are different in that they create a slot, or gap between the slat and the main part of the wing. Aircraft types that feature slats/slots include the Tiger Moth and the Socata Rallye, as well as larger transport types. Handley Hage, a UK aircraft manufacturer, is usually credited with the invention of the slat/slot.
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here for more information than you ever realised you wanted to know about flaps, slats, slots, Krueger leading edge devices, droop snoops, the lot!
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The Odd One
Droop being fixed as opposed slats etc that move.
The leading edge of the Hawker Siddley Trident moved downward to create a \'droop snoop\' to change the shape of the wing for low-speed flight. Boeing in particular seems to favour the Krueger leading edge device, that looks like it shouldn\'t work but does seem to.
The Odd One