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Glossary of terms used on this site

Glossary of biology.

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Glossaries

Term Main definition
water potential (Ψw)
Glossaries - Biology glossary

the potential energy of a water solution per unit volume in relation to pure water at atmospheric pressure and ambient temperature

water vascular system
Glossaries - Biology glossary

system in echinoderms where water is the circulatory fluid

wavelength
Glossaries - Biology glossary

distance between consecutive points of equal position (two crests or two troughs) of a wave in a graphic representation; inversely proportional to the energy of the radiation

wax
Glossaries - Biology glossary

lipid made of a long-chain fatty acid that is esterified to a long-chain alcohol; serves as a protective coating on some feathers, aquatic mammal fur, and leaves.

weather
Glossaries - Biology glossary

conditions of the atmosphere during a short period of time

white blood cell
Glossaries - Biology glossary

large (30 μm) cell with nuclei of which there are many types with different roles including the protection of the body from viruses and bacteria, and cleaning up dead cells and other waste

white-nose syndrome
Glossaries - Biology glossary

disease of cave-hibernating bats in the eastern United States and Canada associated with the fungus Pseudogymnoascus destructans

white-nose syndrome
Glossaries - Biology glossary

d

whorled
Glossaries - Biology glossary

pattern of leaf arrangement in which three or more leaves are connected at a node