Feather-edge/ :: Feather-edge/ (n.) The thin, new growth around the edge of a shell, of an oyster..
Feather-edge/ :: Feather-edge/ (n.) Any thin, as on a board or a razor..
Feather-edged/ :: Feather-edged/ (a.) Having a feather-edge; also, having one edge thinner than the other, as a board; -- in the United States, said only of stuff one edge of which is made as thin as practicable..