a fuller is a form of:

Fuller



adjective: full, comparative: fuller, superative: fullest
ENGLISH MEANING
noun
1.
A die; a half-round set hammer, used for forming grooves and spreading iron; -- called also a creaser.
verb
1.
(TRANSITIVE) To form a groove or channel in, by a fuller or set hammer; as, to fuller a bayonet.
2.
(TRANSITIVE) One whose occupation is to full cloth.