| Subject | English | Portuguese |
| nat.sc. | Jet Propulsion Labs | Laboratório de Propulsão a Jato |
| comp., MS, Braz. | lab agent | agente de laboratório (A background process that runs on a virtual machine to configure, monitor, and report on status and errors. The lab agent communicates with the lab service running on the Team Foundation Server application tier) |
| comp., MS, Braz. | lab environment | ambiente de laboratório (An environment, consisting of virtual machines, that is managed by a lab service) |
| comp., MS, Braz. | Lab Management | Lab Management (A product within the Visual Studio Team System suite that enables you to manage virtual environments for use within team projects. The environments can be used for application development, deployment, and testing) |
| nat.sc. | lab-on-chip | laboratório em pastilha |
| comp., MS, Braz. | lab service | serviço de laboratório (A Team Foundation Server Web service used to manage virtual environments) |
| comp., MS, Braz. | lab test | exame laboratorial (A procedure that is intended to detect and quantify substances or identify the nature of a disease) |
| environ. | other waste containing inorganic chemicals, e.g. lab chemicals not otherwise specified, fire extinguishing powders | outros resíduos contendo produtos químicos inorgânicos, por exemplo produtos químicos de laboratório não especificados, pós de extinção de incêndios |
| environ. | other waste containing organic chemicals, e.g. lab chemicals not otherwise specified | outros resíduos contendo químicos orgânicos, por exemplo produtos químicos de laboratório não especificados |
| tech. | standards lab | laboratório de normas |
| comp., MS | test lab | laboratório de teste (A collection of non-production machines that are used to test an Internet Explorer Package. The lab is not the same as a pilot group) |
| comp., MS, Braz. | Windows Hardware Quality Labs | Windows Hardware Quality Labs (A Microsoft hardware-testing organization that produces and supports the Microsoft Hardware Compatibility Test kit for current Microsoft operating systems. Both hardware and software are tested before rights to use the logo are granted) |