Ellipsograph

• (n.) An instrument for describing ellipses; -- called also trammel.
Found on http://thinkexist.com/dictionary/meaning/ellipsograph/

Ellipsograph

El·lip'so·graph noun [ Ellipse + graph : confer French ellipsographe .] An instrument for describing ellipses; -- called also trammel .
Found on http://www.encyclo.co.uk/webster/E/22

ellipsograph

instrument for describing ellipses
Found on http://phrontistery.info/e.html
No exact match found