Fusain

Fusain is a fossilised carbon deposit, which - after some controversy - has been identified as fossilised charcoal. It is fibrous, black and opaque, and often preserves details of cell wall architecture. Wood-derived fusain usually takes the form of cubic blocks, whereas fusain from other plant material may take the form of thin films which are on...
Found on http://en.wikipedia.org/wiki/Fusain

Fusain

Fu'sain' noun [ French, the spindle tree; also, charcoal made from it.] (Fine Arts) (a) Fine charcoal of willow wood, used as a drawing implement. (b) A drawing made with it. See Charcoal , noun 2, and Charcoal drawing , under Cha...
Found on http://www.encyclo.co.uk/webster/F/89

fusain

Fine charcoal of willow wood, used as a drawing implement. ... A drawing made with it. See Charcoal, 2, and Charcoal drawing, under Charcoal. ... Origin: F, the spindle tree; also, charcoal made from it. ... Source: Websters Dictionary ... (01 Mar 1998) ...
Found on http://www.mondofacto.com/facts/dictionary?fusain

Fusain

• (n.) Fine charcoal of willow wood, used as a drawing implement. • (n.) A drawing made with it. See Charcoal, n. 2, and Charcoal drawing, under Charcoal.
Found on http://thinkexist.com/dictionary/meaning/fusain/

fusain

(from the article `coal`) ...Durain is thought to have formed in peat deposits below water level, where only liptinite and inertinite components resisted decomposition and ...
Found on http://www.britannica.com/eb/a-z/f/72

fusain

fine charcoal used in drawing
Found on http://phrontistery.info/f.html
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