noun A preview or part of a product released in preparation of its main advertising, typically a short film, song, or quote.
noun A brief portion of a television episode or video that is shown at the beginning, often before the main title sequence, meant to introduce the story and entice viewers to watch the rest of the episode.
noun A kind of gull, the jaeger
noun A shunt winding on field magnets for maintaining their magnetism when the main circuit is open.
noun The stoker of a glassworks furnace.
noun A short horizontal curtain used to mask the flies and frame the top of the inner stage opening, adjustable to the desired height.