plural of duad

(grammar) A grammatical number denoting a quantity of exactly two.

In a dualistic manner.

(British spelling) The conversion of a road into a dual carriageway

present participle of dual

plural of dualling

A theory of cognition according to which visual and verbal information are both used to represent information, but processed in different ways.

(uncountable) The control of a vehicle by either one of two people / (countable) The equipment that allows such control

plural of dual control

Alternative form of dualizable