'Haircloth' definitions:

Definition of 'haircloth'

noun

Cloth woven from horsehair or camelhair; used for upholstery or stiffening in garments [syn: haircloth, hair]

From: GCIDE

Haircloth \Hair"cloth`\ (-kl[o^]th`), n. Stuff or cloth made wholly or in part of hair. [1913 Webster]