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burr-pump
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bur-pump
ˈburr-pump, ˈbur-pump Naut. [f. bur, or burr n.1 + pump.] A form of bilge-pump with the piston so constructed as not to require a valve: see quot.1627 Capt. Smith Seaman's Gram. ii. 8 A Bur Pump. The Dutch men vse a Burre pumpe..wherein is onely a long staffe with a Burre at the end, like a Gunners ...
Oxford English Dictionary
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burr
▪ I. burr, bur, n.1 (bɜː(r)) Also 7 burgh, 6–7 burre. [Derivation obscure: nor is it at all clear whether the senses under II and III ought not to be treated as separate words. But the co-existence of the form burrow n.5 (q.v.) with burr sense 5, and its explanation as ‘a circle about the moon’, see...
Oxford English Dictionary
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pump
▪ I. pump, n.1 (pʌmp) Also 5–7 pompe, pumpe, (5–6 pomp, poompe, 6 poumpe): see also plump n.2 [Late ME. pumpe, pompe, = early mod.Du. pompe, Du. pomp, LG. pumpe, pump, mod.Ger. pumpe; whence Da. pompe, Sw. pump; also Fr. pompe. Machines for raising water were in ancient and mediæval use, but no trac...
Oxford English Dictionary
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