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Hydrocarbons of biological origin having carbon skeletons formally derived from isoprene [CH2=C(CH3)CH=CH2]. This class is subdivided into the C5 hemiterpenes, C10 monoterpenes, C15 sesquiterpenes, C20 diterpenes, C25 sesterterpenes, C30 triterpenes, C40 tetraterpenes (carotenoids), and C5n polyterpenes. See also carotenes, carotenoids, isoprenoids, prenols, retinoids, steroids, terpenoids.
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template definition
1 : a model that describes a pattern of program input to be recognized or a pattern of output to be produced. 2 : a format, overlay, or form used to generate consistent product. Examples are a reticle or mask in semiconductor manufacturing, a...
test method definition
a definitive procedure for the identification, measurement, and evaluation of a material, product, system, or service that produces a test result. [ASTM D4392-87]
tensile definition
having to do with the longitudinal stress applied to lengthen a test object. [SEMI F7-92]
Synperiplanar definition
See torsion angle.
TDFS definition
time-dependent fluorescence shifts
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