PROTRACT'OR, noun An instrument for laying down and measuring angles on paper with accuracy and dispatch, and by which the use of the line of chords is superseded. It is of various forms, semicircular, rectangular or circular.
Contenido
Derechos y fuentes
Consulta información de fuente, licencia y atribución de este contenido.
Contenido
Webster's Dictionary 1828
American Dictionary of the English Language, Noah Webster, 1828.