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MCAT Word List # MCAT/M117

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Explanation of axon hillock (noun)
form: no plural

origin of an axon of a nerve cell at which an action potential can be initiated

Sample of axon hillock
The axon hillock connects the cell body to the axon.



   
Explanation of cystic fibrosis (noun)
form: no plural

inherited disease

Sample of cystic fibrosis
Patients with cystic fibrosis have a reduced lifespan.

Medical term cystic fibrosis
Dictionary.com · Cambridge Dictionaries · Merriam-Webster · Onelook.com


   
Explanation of permeability (noun)
form: no plural

the ability of a solid substance to allow fluids to pass through it

Sample of permeability
All of the biological membranes surrounding cells and cellular organelles have selective permeability.



   
Explanation of greenhouse effect (noun)
form: no plural

the composition of greenhouse gases in the air allows the Earth's surface to stay warm so that life can continue

Sample of greenhouse effect
If there were no greenhouse effect it would be too cold for life to inhabit this planet.

Medical term greenhouse effect
Dictionary.com · Cambridge Dictionaries · Merriam-Webster · Onelook.com


   
Explanation of bond (noun)
form plural: bonds

the attractive force that connects atoms together as a molecule or ions as a crystal

Sample of bond
Bonds can be single, double or covalent.



   
Explanation of actinide series (noun)
form: only plural

15 radioactive elements

Sample of actinide series
Atomic numbers of the actinide series increases from actinium to lawrencium.

Medical term actinide series
Dictionary.com · Cambridge Dictionaries · Merriam-Webster · Onelook.com


   
Explanation of photophobia (noun)
form plural: photophobias

pain of the eyes on exposure to light

Sample of photophobia
Photophobia may be a symptom of migraine headaches.



   
Explanation of symptom (noun)
form plural: symptoms

an indication of an illness as noticed by the patient

Sample of symptom
A symptom of diabetes is frequent urination.



   
Explanation of fascicle (noun)
form plural: fascicles

bundle of muscle fibers

Sample of fascicle
Fascicles are covered with connective tissue.



   
Explanation of salt (noun)
form plural: salts

this is a compound where the hydrogen atom of an acid has been replaced by another cation

Sample of salt
Salts are needed for fluid homeostasis.



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