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Webster 1913 Edition
Double-threaded
Dou′ble-threadˊed
,Adj.
1.
Consisting of two threads twisted together; using two threads.
2.
(Mech.)
Having two screw threads instead of one; – said of a screw in which the pitch is equal to twice the distance between the centers of adjacent threads.
Webster 1828 Edition
Double-threaded
DOUBLE-THREADED
,Adj.