S: (n) cover glass, cover slip (a small and very thin piece of glass used to cover the specimen on a microscope slide)
S: (n) section (a very thin slice (of tissue or mineral or other substance) for examination under a microscope) "sections from the left ventricle showed diseased tissue"
S: (n) slide, glide, coast (the act of moving smoothly along a surface while remaining in contact with it) "his slide didn't stop until the bottom of the hill"; "the children lined up for a coast down the snowy slope"
S: (n) slide, lantern slide (a transparency mounted in a frame; viewed with a slide projector)