| Subject | English | Estonian |
| comp., MS | date separator | andmeeraldaja (A character that is used to separate the day, month, and year when date values are formatted. The characters are determined by system settings or by the Format function) |
| agric. | gravity separator | tuulamismasin |
| comp., MS | list-separator character | loendi eraldusmärk (A character, usually a comma or semicolon, that separates elements in a list) |
| environ. | particle separator A device for segregation of solid particles by size range, as a screening | kübemepüünis |
| comp., MS | separator bar | eraldusjoon (A line that separates groups of controls (on a surface) or commands (on a menu)) |
| environ. | separator of light liquids A mechanical device for separating and removing residues from fuel and lubricating oil from waste water coming from filling stations and industrial plants in order to avoid pollution of water bodies; this system is based on the different specific weights of water and fuel residues that float on the water and can be easily removed | kergvedelikueraldi |