【机】 furfural
goodman; husband; sister-in-law
armour; first; nail; shell【医】 carapace; concha; conchae; helo-; nail; onycho-; onyx
【化】 fur(fur)aldehyde; furfural; furfurol; oil of ants【医】 furaldehyde; furfural; furfuraldehyde; furfurol