(grammar) A noun (or specific sense of a noun) that can only occur in the dual, and which lacks forms for singular, plural, and any other number.

plural of dual citizen

A citizen of two countries; a person with dual citizenship.

A form of federalism in which power is clearly divided between the federal and state governments.

plural of categorical dual

plural of dual primary

plural of dual meet

plural of dual carriageway

plural of dual number

plural of dual mandate