Definify.com
Webster 1913 Edition
Expanding
Ex-pand′ing
,Adj.
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.
Webster 1828 Edition
Expanding
EXPAND'ING
,ppr.