Where does “helicograph” come from?
helicograph (English) comes from English helico-, from Latin helic-, from Ancient Greek ἕλιξ, from Ancient Greek πτερόν, from Proto-Indo-European péth₂r̥, from Proto-Indo-European peth₂- — to spread out; to fly.
helicograph (English): An instrument for drawing spiral lines on a plane
Definitions
- An instrument for drawing spiral lines on a plane