Rangle (noun)
ran-gl
Small stones or gravel given to a hawk, usually to improve its digestion.
Late 17th century; earliest use found in Edward Phillips (b. 1630), writer and biographer. Origin unknown. The identity in form with rangle is perhaps coincidental, since, although both are falconry terms, a semantic connection is not easy to trace.
Example sentences
“Hawks digest differently to humans and require rangle to aid digestion.”