Nouns denoting natural phenomena

charge
the quantity of unbalanced electricity in a body (either positive or negative) and construed as an excess or deficiency of electrons
 
skin effect
the tendency of high-frequency alternating current to distribute near the surface of a conductor
 
light air
wind moving 1-3 knots; 1 on the Beaufort scale
 
compartment pressure
the air pressure maintained in an air-tight compartment (as in an aircraft)
 
northwest wind
a wind from the northwest
 
repulsion
the force by which bodies repel one another
 
tempest
(literary) a violent wind
 
acoustic impedance
opposition to the flow of sound through a surface; acoustic resistance is the real component of acoustic impedance and acoustic reactance is the imaginary component
 
heat of formation
the heat evolved or absorbed during the formation of one mole of a substance from its component elements
 
rain
water falling in drops from vapor condensed in the atmosphere
 
doldrums
a belt of calms and light winds between the northern and southern trade winds of the Atlantic and Pacific
 
cell death
(physiology) the normal degeneration and death of living cells (as in various epithelial cells)
 
circulation
movement through a circuit; especially the movement of blood through the heart and blood vessels
 
chop
the irregular motion of waves (usually caused by wind blowing in a direction opposite to the tide)
 
xenogenesis
the alternation of two or more different forms in the life cycle of a plant or animal
 
virtual image
a reflected optical image (as seen in a plane mirror)
 
thermionic current
an electric current produced between two electrodes as a result of electrons emitted by thermionic emission
 
change
the result of alteration or modification
 
rebirth
after death the soul begins a new cycle of existence in another human body
 
infrared spectrum
the spectrum of infrared radiation
 
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