filamentous

The plumes in question consist of long filamentous feathers that grow from the neck of the egret and also from its breast.

Ligniform asbestos, or mountain-wood, is a variety presenting an irregular filamentous structure, like wood.

Mycelioid: A filamentous colony, with the radiate character of a mould (Fig. 141, c).

Filamentous: An irregular mass of loosely woven filaments (Fig. 142, a).