CHALKINESS
Chalk"i*ness, n.
Defn: The state of being chalky.
CHALKSTONE
Chalk"stone`, n.
1. A mass of chalk. As chalkstones . . . beaten in sunder. Isa. xxvii. 9.
2. (Med.)
Defn: A chalklike concretion, consisting mainly of urate of sodium, found in and about the small joints, in the external ear, and in other situations, in those affected with gout; a tophus.
CHALKY
Chalk"y, a.
Defn: Consisting of, or resembling, chalk; containing chalk; as, a chalky cliff; a chalky taste.
CHALLENGE Chal"lenge, n. Etym: [OE. chalenge claim, accusation, challenge, OF. chalenge, chalonge, claim, accusation, contest, fr. L. calumnia false accusation, chicanery. See Calumny.]
1. An invitation to engage in a contest or controversy of any kind; a defiance; specifically, a summons to fight a duel; also, the letter or message conveying the summons. A challenge to controversy. Goldsmith.