Joist , v. t. [imp. & p. p. Joisted;
p. pr. & vb. n.
Joisting.]
To fit
or furnish with joists. Johnson.
Joist (joist), n. [OE. giste, OF.
giste, F. gîte,
fr. gesir to lie, F. gésir. See Gist.]
(Arch.)
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.
Hear it pronounced