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back saw
back saw n. 
/ˈbæk ˌsɑ/ (see quot.).
Brit. /ˈbak sɔː/
, /ˈbak sɔː/U.S. /ˈbæk ˌsɔ/
, /ˈbæk ˌsɔ//ˈbæk ˌsɑ/ΘΚΠ
society > occupation and work > equipment > cutting tool > saw > [noun] > other saws
handsaw1399
rug-saw1582
frame saw1633
nocksaw1659
bow-saw1678
lock saw1688
stadda1688
wire saw1688
panel saw1754
keyhole saw1761
web saw1799
table saw1832
rack saw1846
scroll-saw1851
fretsaw1865
back saw1874
foxtail-saw1874
tub-saw1874
gullet-saw1875
Swede saw1934
1874 E. H. Knight Amer. Mech. Dict. I. 206/2 Back-saw, a saw whose web is stiffened by a metallic back of greater substance; as, a tenon saw.
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