I. full·er ˈfu̇lə(r) noun
( -s )
Etymology: Middle English fullere, from Old English, from Latin fullo fuller + Old English -ere -er — more at full V
1. : one that fulls cloth
2. : weighter
II. ful·ler transitive verb
( -ed/-ing/-s )
Etymology: probably from the name Fuller
: to form a groove or channel in
fuller a bayonet
III. ful·ler noun
( -s )
1. : a blacksmithing set hammer with a longitudinally half-round peen or a form of bottom tool with a similar working end sometimes used in conjunction with the first for grooving and spreading iron ; also : a groove made by such a tool or any groove or fluting
2. : the portion of a forging die that reduces the cross-sectional area between the ends of the stock and permits the metal to move outward during preliminary forging