| Subject | English | Lithuanian |
| life.sc. | abiotic oxygen uptake | abiotinė deguonies sugertis |
| el. | atmospheric oxygen | atmosferos deguonis |
| obs., el. | atmospheric oxygen | atmosferinis deguonis |
| environ. | biochemical oxygen demand The amount of oxygen used for biochemical oxidation by a unit volume of water at a given temperature and for a given time. BOD is an index of the degree of organic pollution in water | biocheminis deguonies poreikis |
| nat.sc., environ., chem. | biochemical oxygen demand | biocheminis deguonies suvartojimas |
| nat.sc., environ., chem. | biological oxygen demand | biocheminis deguonies suvartojimas |
| life.sc. | chemical oxygen consumption | cheminis deguonies suvartojimas |
| environ., chem. | chemical oxygen demand | cheminis deguonies suvartojimas |
| environ. | chemical oxygen demand The quantity of oxygen used in biological and non-biological oxidation of materials in water; a measure of water quality | deguonies cheminis poreikis |
| chem. | diatomic oxygen | deguonis |
| environ., chem. | dissolved oxygen | ištirpęs deguonis |
| environ. | dissolved oxygen The amount of oxygen dissolved in a stream, river or lake is an indication of the degree of health of the stream and its ability to support a balanced aquatic ecosystem. The oxygen comes from the atmosphere by solution and from photosynthesis of water plants. The maximum amount of oxygen that can be held in solution in a stream is termed the saturation concentration and, as it is a function of temperature, the greater the temperature, the less the saturation amount. The discharge of an organic waste to a stream imposes an oxygen demand on the stream. If there is an excessive amount of organic matter, the oxidation of waste by microorganisms will consume oxygen more rapidly than it can be replenished. When this happens, the dissolved oxygen is depleted and results in the death of the higher forms of life | ištirpęs deguonis |
| environ., chem. | dissolved oxygen concentration | ištirpęs deguonis |
| environ. | oxygen content Amount of oxygen contained in a solution | deguonies kiekis |
| med. | oxygen content | deguonies kiekis |
| transp. | oxygen converter | deguonies konverteris |
| environ. | oxygen deficiency No definition needed | deguonies trūkumas |
| life.sc. | oxygen electrode | deguonies elektrodas |
| chem. | oxygen meter | deguonies matuoklis |
| med. | ship's industrial oxygen | laivo pramoninis deguonis |
| life.sc., chem. | theoretical oxygen demand | teorinis deguonies suvartojimas |