Definitions for water potential
wa·ter po·ten·tial

WiktionaryRate this definition:4.3 / 3 votes

1. water potentialnoun

   The potential energy of water per unit volume.

WikipediaRate this definition:0.0 / 0 votes

1. Water potential

   Water potential is the potential energy of water per unit volume relative to pure water in reference conditions. Water potential quantifies the tendency of water to move from one area to another due to osmosis, gravity, mechanical pressure and matrix effects such as capillary action (which is caused by surface tension). The concept of water potential has proved useful in understanding and computing water movement within plants, animals, and soil. Water potential is typically expressed in potential energy per unit volume and very often is represented by the Greek letter ψ. Water potential integrates a variety of different potential drivers of water movement, which may operate in the same or different directions. Within complex biological systems, many potential factors may be operating simultaneously. For example, the addition of solutes lowers the potential (negative vector), while an increase in pressure increases the potential (positive vector). If the flow is not restricted, water will move from an area of higher water potential to an area that is lower potential. A common example is water with dissolved salts, such as seawater or the fluid in a living cell. These solutions have negative water potential, relative to the pure water reference. With no restriction on flow, water will move from the locus of greater potential (pure water) to the locus of lesser (the solution); flow proceeds until the difference in potential is equalized or balanced by another water potential factor, such as pressure or elevation.

WikidataRate this definition:5.0 / 1 vote

1. Water potential

   Water potential is the potential energy of water per unit volume relative to pure water in reference conditions. Water potential quantifies the tendency of water to move from one area to another due to osmosis, gravity, mechanical pressure, or matrix effects such as surface tension. Water potential has proved especially useful in understanding water movement within plants, animals, and soil. Water potential is typically expressed in potential energy per unit volume and very often is represented by the Greek letter . Water potential integrates a variety of different potential drivers of water movement, which may operate in the same or different directions. Within complex biological systems, it is common for many potential factors to be important. For example, the addition of solutes to water lowers the water's potential, just as the increase in pressure increases its potential. If possible, water will move from an area of higher water potential to an area that has a lower water potential. One very common example is water that contains a dissolved salt, like sea water or the solution within living cells. These solutions typically have negative water potentials, relative to the pure water reference. If there is no restriction on flow, water molecules will proceed from the locus of pure water to the more negative water potential of the solution; flow proceeds until the difference in solute potential is balanced by another force, for example, pressure potential.

How to pronounce water potential?

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How to say water potential in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of water potential in Chaldean Numerology is: 2

2. Pythagorean Numerology

   The numerical value of water potential in Pythagorean Numerology is: 8

Examples of water potential in a Sentence

1. Sebastian Leuzinger / iScience:

   This is different from how normal trees operate, where the water flow is driven by the water potential of the atmosphere, in this case, the stump has to follow what the rest of the trees do, because since it lacks transpiring leaves, it escapes the atmospheric pull.

References

1. ^ Wiktionary
   https://en.wiktionary.org/wiki/Water_Potential
2. ^ Wikipedia
   https://en.wikipedia.org/wiki/Water_Potential
3. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=water potential