billhook

n. axe having a curved cutting edge

The billhook is a traditional cutting tool used mainly in European agriculture, but also common throughout most of the world where it was introduced by European settlers or developed independently.The blade is usually made from a medium carbon steel in varying weights and lengths, but typically 20 - 25 cm (8" - 10") long. Blades are straight near the handle but have an increasingly strong curve towards the end. The blade is generally sharpened only on the inside of the curve, but double edged billhooks, or broom hooks, also have a rectangular secondary blade on the back.
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Noun
1. a long-handled saw with a curved blade; "he used a bill to prune branches off of the tree"
(synonym) bill
(hypernym) saw

(n.)
A thick, heavy knife with a hooked point, used in pruning hedges, etc. When it has a short handle, it is sometimes called a hand bill; when the handle is long, a hedge bill or scimiter.
  

billhook
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