EXPANDING
Verb
expanding
present participle of expand
Source: Wiktionary
Ex*pand"ing, a.
Definition: That expands, or may be expanded; extending; spreading;
enlarging. Expanding bit, Expanding drill (Mech.), a bit or drill
made adjustable for holes of various sizes; one which can be expanded
in diameter while boring.
– Expanding pulley (Mach.), a pulley so made, as in sections, that
its diameter can be increased or diminished.
EXPAND
Ex*pand", v. t. [imp. & p. p. Expanded; p. pr. & vb. n. Expanding.]
Etym: [L. expandere, expansum; ex out + pandere to spread out, to
throw open; perh. akin to E. patent. Cf. Spawn.]
1. To lay open by extending; to open wide; to spread out; to diffuse;
as, a flower expands its leaves.
Then with expanded wings he steers his flight. Milton.
2. To cause the particles or parts of to spread themselves or stand
apart, thus increasing bulk without addition of substance; to make to
occupy more space; to dilate; to distend; to extend every way; to
enlarge; -- opposed to Ant: contract; as, to expand the chest; heat
expands all bodies; to expand the sphere of benevolence.
3. (Math.)
Definition: To state in enlarged form; to develop; as, to expand an
equation. See Expansion, 5.
Ex*pand", v. i.
Definition: To become widely opened, spread apart, dilated, distended, or
enlarged; as, flowers expand in the spring; metals expand by heat;
the heart expands with joy. Dryden.
Source: Webster’s Unabridged Dictionary 1913 Edition