From The Collaborative International Dictionary of English v.0.48:
Spray \Spray\, n. [Probably from a Dutch or Low German form akin
to E. spread. See Spread, v. t.]
1. Water flying in small drops or particles, as by the force
of wind, or the dashing of waves, or from a waterfall, and
the like.
[1913 Webster]
2. (Med.)
(a) A jet of fine medicated vapor, used either as an
application to a diseased part or to charge the air of
a room with a disinfectant or a deodorizer.
(b) An instrument for applying such a spray; an atomizer.
[1913 Webster]
Spray condenser (Steam Engine), an injection condenser in
which the steam is condensed by a spray of water which
mingles with it.
[1913 Webster]
From The Collaborative International Dictionary of English v.0.48:
Spray \Spray\ (spr[=a]), n. [Cf. Dan. sprag. See Sprig.]
1. A small shoot or branch; a twig. --Chaucer.
Syn: sprig.
[1913 Webster]
The painted birds, companions of the spring,
Hopping from spray to spray, were heard to sing.
--Dryden.
[1913 Webster]
2. A collective body of small branches, or cut flowers with
long stems; as, the tree has a beautiful spray; many
sprays were sent in condolence to teh funeral home.
[1913 Webster +PJC]
And from the trees did lop the needless spray.
--Spenser.
[1913 Webster]
3. (Founding)
(a) A side channel or branch of the runner of a flask,
made to distribute the metal in all parts of the mold.
(b) A group of castings made in the same mold and
connected by sprues formed in the runner and its
branches. --Knight.
[1913 Webster]
Spray drain (Agric.), a drain made by laying under earth
the sprays or small branches of trees, which keep passages
open.
[1913 Webster]
From The Collaborative International Dictionary of English v.0.48:
Spray \Spray\, v. t.
1. To let fall in the form of spray. [Poetic] --M. Arnold.
[1913 Webster]
2. To throw spray upon; to treat with a liquid in the form of
spray; as, to spray a wound, or a surgical instrument,
with carbolic acid.
[1913 Webster]