coefficient of thermal expansion (redirected from Coefficients of expansion)

coefficient /co·ef·fi·cient/ (ko″ah-fish´int)

1. an expression of the change or effect produced by variation in certain factors, or of the ratio between two different quantities.

2. a number or figure put before a chemical formula to indicate how many times the formula is to be multiplied.

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absorption coefficient 

1. absorptivity.

2. linear absorption c.

3. mass absorption c.

biological coefficient  the amount of potential energy consumed by the body at rest.

correlation coefficient  a measure of the relationship between two statistical variables, most commonly expressed as their covariance divided by the standard deviation of each.

linear absorption coefficient  in radiation physics, the fraction of a beam of radiation absorbed per unit thickness of the absorber.

mass absorption coefficient  in radiation physics, the linear absorption coefficient divided by the density of the absorber.

phenol coefficient  a measure of the bactericidal activity of a chemical compound in relation to phenol.

sedimentation coefficient  the velocity at which a particle sediments in a centrifuge relative to the applied centrifugal field, usually expressed in Svedberg units (S), equal to 10−13 second, which are used to characterize the size of macromolecules.

coefficient of thermal conductivity  a number indicating the quantity of heat passing in a unit of time through a unit thickness of a substance when the difference in temperature is 1°C.

coefficient of thermal expansion  the change in volume per unit volume of a substance produced by a 1°C temperature increase.

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coefficient of thermal expansion,

n See expansion, thermal coefficient.