syn·tag·mat·ic 
(sĭn′tăg-mătĭk)
(sĭn′tăg-mătĭk)adj.
Of or relating to the relationship between linguistic units in a construction or sequence, as between the (n) and adjacent sounds in not, ant, and ton. The identity of a linguistic unit within a language is described by a combination of its syntagmatic and its paradigmatic relations.
[French syntagmatique, from Greek suntagmatikos, arranged, put in order, from suntagma, suntagmat-, arrangement, syntactic unit; see SYNTAGMA.]