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MCAT Word List # MCAT/M108

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  Word Explanations activation energy, wavelength, diffusion, theory, teratogen, diglyceride, venepuncture, ophthalmology, myopia, formation


   
Explanation of activation energy (noun)
form plural: activation energies

the energy needed to start a chemical reaction

Sample of activation energy
Activation energies explain why reaction rates vary with different temperatures.



   
Explanation of wavelength (noun)
form plural: wavelengths

the distance between two successive peaks or troughs of a waveform

Sample of wavelength
The different colors of light are identified by their different wavelengths.



   
Explanation of diffusion (noun)
form: no plural

transmission of light through a surface

Sample of diffusion
Diffusion accounts for the fact that an open bottle of perfume can quickly be smelled across the room.



   
Explanation of theory (noun)
form plural: theories

a general principle which helps to explain the world around us and relates facts to each other

Sample of theory
Theories develop from hypotheses which are proven to be true from experiments.



   
Explanation of teratogen (noun)
form plural: teratogens

any substance, chemical or otherwise, which causes abnormalities in the developing fetus

Sample of teratogen
Thalidomide is a teratogen as it affects limb development.



   
Explanation of diglyceride (noun)
form plural: diglycerides

contains two fatty acids joined to a glycerol molecule

Sample of diglyceride
A diglyceride can also be called a diacylglycerol.



   
Explanation of venepuncture (noun)
form plural: venepunctures

the puncture of a vein in order to take blood

Sample of venepuncture
Blood is taken for testing by venipuncture.



   
Explanation of ophthalmology (noun)
form: no plural

branch of medicine that deals with the eye and its diseases

Sample of ophthalmology
Ophthalmology is a medical specialty.



   
Explanation of myopia (noun)
form: no plural

shortsightedness

Sample of myopia
Someone who has myopia can clearly see close objects but not distant objects.



   
Explanation of formation (noun)
form plural: formations

spatial shape or position; the process of making something

Sample of formation
An alpha helix structure involves the formation of spiral coils of the polypeptide chains.



  Explain the words activation energy, wavelength, diffusion, theory, teratogen, diglyceride, venepuncture, ophthalmology, myopia, formation

  Preparation book: E-health systems Diffusion And Use: The Innovation

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     MCAT practice test: ESL English Vocabulary: Examples of Nouns         MCAT practice test: Online word games: Free Nouns Quiz         MCAT Practice: (printable version)         Meaning of activation energy, wavelength, diffusion, theory, teratogen, diglyceride, venepuncture, ophthalmology