cou·tu·rière 
(k-trē-ər, -ē-âr′, -tür-yĕr)
(k-trē-ər, -ē-âr′, -tür-yĕr)n.
A woman who designs for or owns an establishment engaged in couture.
[French, dressmaker, seamstress, from Old French cousturiere, feminine of cousturier; see COUTURIER.]