Full·er n. One whose occupation is to full cloth.
Fuller's earth, a variety of clay, used in scouring and cleansing cloth, to imbibe grease.
Fuller's herb Bot., the soapwort (Saponaria officinalis), formerly used to remove stains from cloth.
Fuller's thistle or Fuller's weed Bot., the teasel (Dipsacus fullonum) whose burs are used by fullers in dressing cloth. See Teasel.