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Webster 1913 Edition
Boyer
Boy′er
,Noun.
 [D. 
boeijer
; – so called because these vessels were employed for laying the boeijen
, or buoys: cf. F. boyer
. See Buoy
.] (Naut.) 
A Flemish sloop with a castle at each end. 
Sir W. Raleigh.
 Webster 1828 Edition
Boyer
BOY'ER
,Noun.