Definition of flax

• n. - A plant of the genus Linum, esp. the L. usitatissimum, which has a single, slender stalk, about a foot and a half high, with blue flowers. The fiber of the bark is used for making thread and cloth, called linen, cambric, lawn, lace, etc. Linseed oil is expressed from the seed.
• n. - The skin or fibrous part of the flax plant, when broken and cleaned by hatcheling or combing.