| (chemical analysis) a counterweight used in chemical analysis; consists of an empty container that counterbalances the weight of the container holding chemicals | widely distributed genus of annual or perennial and often climbing herbs |
| the weight of a motor vehicle, railroad car, or aircraft without its fuel or cargo | |
| any of several weedy vetches grown for forage | |
| weedy annual grass often occurs in grainfields and other cultivated land; seeds sometimes considered poisonous | |
| an adjustment made for the weight of the packaging in order to determine the net weight of the goods | |