ELLIPSOGRAPH
Source: 567
El‐lip″so‐graph (?), n. [[Ellipse + graph: cf. F. ellipsographe.]] An instrument for describing ellipses; — called also trammel.
Source: 567
El‐lip″so‐graph (?), n. [[Ellipse + graph: cf. F. ellipsographe.]] An instrument for describing ellipses; — called also trammel.