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MCAT Word List # MCAT/M87

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Explanation of trisomy (noun)
form plural: trisomies

a condition in which a chromosome is present in a triplet rather than a pair

Sample of trisomy
Down's syndrome is an example of a trisomy.



   
Explanation of double helix (noun)
form plural: double helices

the double-stranded coiled structure of a DNA molecule

Sample of double helix
Watson and Crick determined the double helix structure of DNA.



   
Explanation of enantiomer (noun)
form plural: enantiomers

either one of a pair of chemical components whose molecular structures have a mirror-image relationship to each other

Sample of enantiomer
Enantiomers are chiral objects being images which are not overlayed.



   
Explanation of nitrogen balance (noun)
form: no plural

the relationship between the amount of nitrogen taken in and excreted by the body

Sample of nitrogen balance
The nitrogen balance of the body tells us whether body tissue is being made or broken down i.e. whether the body is in an anabolic or a catabolic state.

Medical term nitrogen balance
Dictionary.com · Cambridge Dictionaries · Merriam-Webster · Onelook.com


   
Explanation of thorax (noun)
form plural: thoraxes

area that contains the heart and lungs; the chest

Sample of thorax
The diaphragm separates the thorax from the abdomen.



   
Explanation of olefin (noun)
form plural: olefins

unsaturated open chain hydrocarbons possessing one or more double bonds

Sample of olefin
Alkenes are also called olefins.



   
Explanation of surfactant (noun)
form plural: surfactants

lipoprotein maintaining the stability of lung tissue

Sample of surfactant
Surfactant facilitates the gas exchange across the membranes.



   
Explanation of acetominophen (noun)
form plural: acetaminophens

a painkiller

Sample of acetominophen
Acetaminophen is a painkiller.



   
Explanation of leukemia (noun)
form plural: leukemias

cancer of the white blood cells

Sample of leukemia
There are many types of leukemias that typically affect different age groups of the population.



   
Explanation of labor (noun)
form plural: labors

the process of childbirth

Sample of labor
Labor is caused by muscular contractions of the uterus.



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