| dual | a grammatical number category referring to two items or units (as opposed to one item (singular) or more than one item (plural)) |
|---|---|
| dual | consisting of or involving two parts or components usually in pairs |
| dual | having more than one decidedly dissimilar aspects or qualities |
| dual | a highway divided down the middle by a barrier that separates traffic going in different directions |
| dual | (computer science) one of a set of small on-off switches mounted in computer hardware |
| dual | a type of passive matrix display in which the top and bottom half of the screen are refreshed simultaneously |
| dual | having a median strip or island between lanes of traffic moving in opposite directions |
| dual | the doctrine that reality consists of two basic opposing elements, often taken to be mind and matter (or mind and body), or good and evil |
| dual | an adherent of dualism |
| dual | of or relating to the philosophical doctrine of dualism |
| dual | (geometry) the interchangeability of the roles of points and planes in the theorems of projective geometry |
| dual | (physics) the property of matter and electromagnetic radiation that is characterized by the fact that some properties can be explained best by wave theory and others by particle theory |