JOINTURELESS
Join"ture*less, a.

Defn: Having no jointure.

JOINTURESS
Join"tur*ess, n.

Defn: See Jointress. Bouvier.

JOINTWEED
Joint"weed`, n. (Bot.)

Defn: A slender, nearly leafless, American herb (Polygonum articulatum), with jointed spikes of small flowers.

JOINTWORM
Joint"worm`, n. (Zoöl.)

Defn: The larva of a small, hymenopterous fly (Eurytoma hordei), which is found in gall-like swellings on the stalks of wheat, usually at or just above the first joint. In some parts of America it does great damage to the crop.

JOIST Joist, n. Etym: [OE. giste, OF. giste, F. gîte, fr. gesir to lie, F. gésir. See Gist.] (Arch.)

Defn: A piece of timber laid horizontally, or nearly so, to which the planks of the floor, or the laths or furring strips of a ceiling, are nailed; — called, according to its position or use, binding joist, bridging joist, ceiling joist, trimming joist, etc. See Illust. of Double-framed floor, under Double, a.