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MCAT Word List # MCAT/M81

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  Word Explanations prostate gland, cation, altitude sickness, hypotonic solution, ion, vertebra, iris, mediastinum, rectum, bronchitis


   
Explanation of prostate gland (noun)
form: no plural

gland in males being located near the bladder and controlling the release of urine from the bladder

Sample of prostate gland
The prostate gland releases the major constituent of semen.



   
Explanation of cation (noun)
form plural: cations

positively charged ions

Sample of cation
An ion that has lost electrons is called a cation.



   
Explanation of altitude sickness (noun)
form: no plural

illness resulting from unacclimatized exposure to high altitude; mountain sickness

Sample of altitude sickness
Altitude sickness can occur around 4500m above sea level.



   
Explanation of hypotonic solution (noun)
form plural: hypotonic solutions

solution with lower salt concentration or lower osmotic pressure than another solution

Sample of hypotonic solution
Dionized water is a hypotonic solution when it is drunk by an organism because it contains less salt than the bodily environment.



   
Explanation of ion (noun)
form plural: ions

charged atom or molecule

Sample of ion
An ion is positive if it has lost electrons or negative if it has gained electrons.



   
Explanation of vertebra (noun)
form plural: vertebrae

one of the bones making up the back bone#bones forming the spinal column or backbone of an animal

Sample of vertebra
There are 33 vertebrae in the spinal column.
Vertebrates are organisms with vertebrae.



   
Explanation of iris (noun)
form plural: irises

part of the eye that controls the pupil size

Sample of iris
The iris is the colored part of the eye.



   
Explanation of mediastinum (noun)
form plural: mediastina

space between the sternum and the spinal column

Sample of mediastinum
The heart, thymus, trachea, bronchi, esophagus, lymph nodes and aorta lie in the mediastinum.



   
Explanation of rectum (noun)
form plural: recta

the last part of the large intestine from the sigmoid colon to the anal canal

Sample of rectum
Feces are stored in the rectum.



   
Explanation of bronchitis (noun)
form: no plural

infection or inflammation of the bronchial tubes

Sample of bronchitis
Viruses are the commonest cause of bronchitis.



  Explain the words prostate gland, cation, altitude sickness, hypotonic solution, ion, vertebra, iris, mediastinum, rectum, bronchitis

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     MCAT practice test: ESL English Vocabulary: Noun Lists         MCAT practice test: Online word games: Free Nouns Quiz         MCAT Prep: (printable version)         Meaning of prostate gland, cation, altitude sickness, hypotonic solution, ion, vertebra, iris, mediastinum