a cloth of exceedingly fine texture, used by the ancients. it is disputed whether it was of cotton, linen, or silk.-a tuft of long, tough filaments which are formed in a groove of the foot, and issue from between the valves of certain bivalve mollusks, as the pinna and mytilus, by which they attach themselves to rocks, etc.-an obsolete name for certain fungi composed of slender threads.-asbestus.