| Subject | English | French |
| mater.sc. | Active Component | Composant actif |
| earth.sc. | active component | composante active |
| el. | active component | élément actif |
| el. | active component | composant actif |
| earth.sc. | active component | composante radioactive |
| tech. | active component | composante wattée |
| automat. | active optical component | composant optique actif |
| comp., MS | Active Server component | composant Active Server (An OLE Automation component designed to run on the server side as part of a Web application. These components are activated through Active Server Pages (ASP) technology but don't require a Windows interface) |
| transp., el. | electrochemically active component | élément électrochimique actif |
| hi.energ. | nuclear-active component | composante nucléaire |
| hi.energ. | nuclear-active component | composante interactive nucléaire |
| hi.energ. | nuclear-active component | composante d'interaction nucléaire |
| med. | release of the active component | libération du composé actif |