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| English | Latvian |
| natural regeneration The replacement by an organism of tissues or organs which have been lost or severely injured | dabiska atjaunošanās |
| water regeneration A process in which naturally occurring microorganisms, plants, trees or geophysical processes break down, degrade or filter out hazardous substances or pollutants from a body of water, cleansing and treating contaminated water without human intervention | ūdens reģenerācija |