/ kənˈstɪtjuənt; NAmE -tʃu-/ noun , adjective
■ noun
1.
a person who lives, and can vote in a constituency :
She has the full support of her constituents.
2.
one of the parts of sth that combine to form the whole
■ adjective
[ only before noun ] ( formal ) forming or helping to make a whole :
to break something up into its constituent parts / elements
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WORD ORIGIN
late 15th cent. (as a noun denoting a person who appoints another as agent): from Latin constituent- (partly via French constituant ) establishing, appointing, from the verb constituere , from con- together + statuere set up.