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| Subject | English | Latvian |
| comp., MS | infrared connection | infrasarkanais savienojums (A way to wirelessly connect computers and devices, using infrared light to send information) |
| comp., MS | infrared network connection | infrasarkanais tīkla savienojums (A direct or incoming network connection to a remote access server using an infrared port) |
| environ. | infrared radiation Electron magnetic radiation whose wavelengths lie in the range from 0.75 or 0.8 micrometer to 1000 micrometers | infrasarkanais starojums |