/ ɑːˌtɪkjuˈleɪʃn; NAmE ɑːrˌt-/ noun
1.
[ U ] ( formal ) the expression of an idea or a feeling in words :
the articulation of his theory
2.
[ U ] ( formal ) the act of making sounds in speech or music :
The singer worked hard on the clear articulation of every note.
3.
[ U , C , usually sing. ] ( technical ) a joint or connection that allows movement
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WORD ORIGIN
late Middle English (in the senses joint , joining ): from Latin articulatio(n-) , from the verb articulare divide into joints, from articulus small connecting part, diminutive of artus joint.