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free energy
Science; General science
A term in thermodynamics which in different treatments may designate either of two functions defined in terms of the internal energy U or enthalpy H , and the ...
hunger
Science; General science
A term most commonly used to refer to the subjective feelings that accompany the need for food; however, the study of this topic has come to include consideration of the overall ...
sapropel
Science; General science
A term possessing genetic implications, originally defined as an aquatic sediment rich in organic matter that formed under reducing conditions (lack of dissolved oxygen in the ...
fine structure (spectral lines)
Science; General science
A term referring to the closely spaced groups of lines observed in the spectra of the lightest elements, notably hydrogen and helium. The components of any one such group are ...
degeneracy (quantum mechanics)
Science; General science
A term referring to the fact that two or more stationary states of the same quantum-mechanical system may have the same energy even though their wave functions are not the same. ...
albedo
Science; General science
A term referring to the reflecting properties of a surface. White surfaces have albedos close to 1; black surfaces have albedos close to 0.
variable (mathematics)
Science; General science
A term that became part of mathematical language during the development of analytic geometry (no equivalent word is found in the writings of Archimedes and other Greek ...
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