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| French | English |
| addition chimique | chemical addition Chemical reaction in which one or more of the double bonds or triple bonds in an unsaturated compound is converted to a single bond by the addition of other atoms or groups |
| addition chimique | chemical addition |
| addition de bichlorure de mercure utilisé comme entraîneur | addition of mercury bichloride employed as a carrier |
| polymère d'addition | addition polymer A polymer formed by the chain addition of unsaturated monomer molecules, such as olefins, with one another without the formation of a by-product, as water; examples are polyethylene, polypropylene and polystyrene |