| rad | a line connecting a satellite to the center of the body around which it is rotating |
|---|---|
| rad | (in a digital numeration system) the positive integer that is equivalent to one in the next higher counting place |
| rad | a housing for a radar antenna |
| rad | a radioactive gaseous element formed by the disintegration of radium |
| rad | very small species of shrubs of southern hemisphere: bush hibiscus |
| rad | southern and western Australian shrub with unlobed or shallowly lobed toothed leaves and purple flowers |