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MCAT Word List # MCAT/M29

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Explanation of white matter (noun)
form: no plural

nerve tissue of the central nervous system that is pale in comparison to the gray matter because it contains more nerve fibers (the myelin covering the nerve fibers is white)

Sample of white matter
Most of the cerebrum is made of white matter.



   
Explanation of electrical synapse (noun)
form: no plural

a junction between two nerve endings

Sample of electrical synapse
At an electrical synapse the action potential passes from one cell to the other without neurotransmitters mediating the process.

Medical term electrical synapse
Dictionary.com · Cambridge Dictionaries · Merriam-Webster · Onelook.com


   
Explanation of imbalance (noun)
form plural: imbalances

lack of balance; out of order

Sample of imbalance
A hormonal imbalance may lead to disease.



   
Explanation of neutron (noun)
form plural: neutrons

uncharged particle found in the nucleus of the atom

Sample of neutron
Protons and neutrons have similar masses.



   
Explanation of solidification (noun)
form: no plural

ability to be made solid

Sample of solidification
Solidification is the reverse process leading from liquid to solid.



   
Explanation of blister (noun)
form plural: blisters

a skin swelling which contains fluid

Sample of blister
The how water burnt his skin and a blister formed.



   
Explanation of acne (noun)
form: no plural

a disorder where the sebaceous glands become blocked causing pimples

Sample of acne
Acne is common in adolescents on the face.



   
Explanation of hydrocarbon (noun)
form plural: hydrocarbons

compound that is made up of carbon and hydrogen alone

Sample of hydrocarbon
Important groups of hydrocarbons are the alkanes, alkenes and arenes.



   
Explanation of chromatin (noun)
form: no plural

nucleic substance that condenses to make chromosomes during mitosis

Sample of chromatin
Chromatin is found in the nucleus and is made up of histones and DNA.



   
Explanation of beta-carotene (noun)
form: no plural

a nutrient found throughout plant and animal species

Sample of beta-carotene
The liver converts beta-carotene to vitamin A.



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