April 15, 2015, is the last day to file your 2011 tax return to claim a refund; if you had an extension, your deadline is October 15, 2015.
A slide is a piece of glass on which you put something that you want to examine through a microscope. ...a drop of blood on a slide. A slide is a piece of playground equipment that has a steep slope for children to go down for fun. ...two young children playing on a slide. COBUILD Advanced English Dictionary.
A slide happens when a section of soil or rock suddenly gives way and moves down a slope. The material moves as a single mass along a slippery zone. The slippery zone is often made up of wet sediment . Translational slides move along a flat slippery zone. Rotational slides move along a concave (bowl shaped) slippery zone.