a. That expands, or may be expanded; extending; spreading; enlarging. [ 1913 Webster ]
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. [ 1913 Webster ]
[しんしゅつ, shinshutsu] (n, vs) advance (into a new market or stage of progress); launching (a new career or venture); expanding (into a new market); stepping forward; emerging; (P)#1838