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polygroove
polygroove adj. and n.
Brit. 
/ˈpɒlɪɡruːv/
, /ˈpɒlɪɡruːv/U.S. /ˈpɑliˌɡruv/
Firearms (now historical) (a) adj. (of a gun) having more than three grooves of rifling in the bore; (b) n. a polygroove rifle./ˈpɑliˌɡruv/ΘΚΠ
society > armed hostility > military equipment > weapon > device for discharging missiles > firearm > [adjective] > by type of bore
rifled1619
screwed1657
full bore1666
wreathed1681
smooth-bore1799
small-bore1833
unrifled1851
poly-grooved1858
smooth-bored1859
polygroove1863
cylinder-bored1881
society > armed hostility > military equipment > weapon > device for discharging missiles > firearm > small-arm > [noun] > rifle > types of
three-o(h)-three1683
air rifle1801
yager1817
big bore1838
seventy-five1840
telescopic rifle1850
Minié rifle1851
needle rifle1856
pea rifle1856
Lancaster1857
six-shooting1858
Whitworth1858
Henry1861
polygroove1863
telescopic-sighted rifle1863
spencer1866
magazine rifle1867
Snider rifle1868
chassepot1869
Martini–Henry rifle1869
Winchester1871
Mauser rifle1872
Martini1876
saloon rifle1881
express1884
express rifle1884
Mannlicher1884
Mauser1887
Lee-Enfield1888
Flobert1890
pump gun1890
take-down1895
two-two1895
Ross rifle1901
hammer-rifle1907
sporter1907
French 751914
twenty-two1925
machine-gun rifle1941
assault rifle1950
assault weapon1968
kalashnikov1970
assault rifle1975
1863 Times 6 Nov. 7/2 It consists of polygroove rifling, but the breech-loading is not essential, you say?
1886 Field 9 Jan. 54/3 Greatly improved the shooting of the old muzzle-loading polygroove.
1997 Independent (Nexis) 1 Mar. 19 A revolutionary field artillery system, the notable features of which were breech loading, polygroove rifling and elongated, fused projectiles.
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as lemmas