1. Having two barrels mounted side by side; SYN. double-barrelled.
2. Having two purposes; twofold; SYN. double-barrelled.

ETYM Latin dualis, from duo two. Related to Two.
(Homonym: duel).
A grammatical number category referring to two items or units (as opposed to one item (singular) or more than one item (plural)).

Of or relating to the philosophical doctrine of dualism.

Having breed characteristics that serve two purposes

ETYM Latin, from duo two + plicare to fold. Related to Two, and Complex.
1. (Telecommunication) Allowing communication in opposite directions simultaneously.
2. (Used technically of a device or process) Having two parts.
Pertaining to simultaneous two-way independent data communication transmission in both direction. Same as full duplex.
Capable of carrying information in both directions over a communications channel. A system is full-duplex if it can carry information in both directions at once; it is half-duplex if it can carry information in only one direction at a time. + prikaži više