FERROCYANIDE n.
prussian blue. It is obtained by strongly heating together potash, scrap iron, and animal matter containing nitrogen, as horn, leather, blood, etc., in iron pots.
FIBER; FIBRE n. 4 definitions
A general name for the raw material, such as cotton, flax, hemp, etc., used in textile manufactures. Fiber gun, a kind of steam gun for converting, wood, straw, etc., into fiber. The material is shut up in the gun with steam, air, or gas at a very high pressure which is afterward relieved suddenly by letting a lid at t…