ETYM Old Eng. smere. smeoru fat, grease; akin to Dutch smeer, German schmeer, Old High Germ. smero, Icel. smjör, Swed. and Dan. smör butter, Goth. smaírthr fatness, smarna dung; cf. Lith. smarsas fat. Related to Smirch.
1. A thin tissue or blood sample spread on a glass slide for examination under a microscope.
2. Slanderous defamation; SYN. vilification, malignment.