n. One who or that which finds or discovers. Specifically— One who finds or determines after search or inquiry.n. An inventor, deviser, or originator.n. A poet.n. In the customs, a searcher employed to discover goods imported or exported without paying custom.n. A smaller telescope attached to a larger, for the purpose of finding an object more readily.n. An extra lens or other device attached to a photographic camera for the purpose of showing on a small supplementary ground glass, or otherwise, the position of the picture in the field of the sensitized plate: used in cameras for making instantaneous pictures.n. A microscopic slide divided by fine lines into a number of minute squares, used to locate exactly any point of especial interest in the field of the microscope. By noting the square which covers the point in question, the observer is enabled to bring it at once into view.