reglet Syllabification: (reg·let)Pronunciation: /ˈreglit/Definition of reglet noun 1 Printing a thin strip of wood or metal used to separate type. 2 Architecture a narrow strip used to separate moldings or panels from one another. Origin: mid 17th century: from French réglet, diminutive of règle 'rule'reglet in other Oxford dictionaries Definition of reglet in the British & World English dictionary