light water

noun

1. ordinary water, as opposed to heavy water; water containing the normal proportion of deuterium oxide.

light water

noun

1. a name for water (H 2 O), as distinct from heavy water

light water

1. Ordinary water, H ₂ O.

2. Compare heavy water

Word History and Origins

Origin of light water¹

First recorded in 1930–35

Example Sentences

The new pools are intended to handle year-round use, incorporating electric pool heaters, salt water and UV light water treatment.

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Around 95% of plants use C3 photosynthesis, in which mesophyll cells -- green spongy cells that live inside leaves -- turn light, water, and carbon dioxide into plant-powering sugars.

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The study verified that wildfire smoke does change light, water temperature and oxygen in lakes -- the basic drivers of lake function and health -- but those changes are as variable as the unique lakes studied.

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Photosynthesis is the central process by which plants build up biomass using light, water and the carbon dioxide from the air.

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The reason for this was thought to be that species-rich systems produce more biomass because they can utilise resources such as light, water and nutrients more efficiently.

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