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MCAT Word List # MCAT/M55

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Explanation of icterus (noun)
form: no plural

yellow color of the skin due to high levels of bilirubin in the blood

Sample of icterus
Another name for icterus is jaundice.



   
Explanation of cleavage (noun)
form plural: cleavages

series of fast mitotic divisions in embryology

Sample of cleavage
The cleavage leads to an increase in cell numbers, while the total amount of cytoplasm stays constant.



   
Explanation of carbon monoxide (CO) (noun)
form plural: carbon monoxides

a poisonous gas

Sample of carbon monoxide (CO)
Carbon monoxide poisoning can be caused by inhaling exhaust fumes.

Medical term carbon monoxide (CO)
Dictionary.com · Cambridge Dictionaries · Merriam-Webster · Onelook.com


   
Explanation of vagina (noun)
form plural: vaginas

the birth canal; extends from the cervix to the vulva

Sample of vagina
The vagina is made of elastic and muscle so it can stretch to allow the baby to be born.



   
Explanation of control (noun)
form plural: controls

used as a basis for comparison in scientific experiments

Sample of control
When new drugs are tested, a placebo is given as a control.



   
Explanation of substituent (noun)
form plural: substituents

atom, radical, or group replaced for another in a chemical molecule

Sample of substituent
Each substituent is apportioned a number to identify its point of attachment to the principal chain of an alkane.



   
Explanation of by-product (noun)
form plural: by-products

a secondary substance made in the process of creating a primary one

Sample of by-product
Oxygen is a byproduct of photosynthesis.



   
Explanation of enantiomers (noun)
form: only plural

molecules that are mirror images of each other

Sample of enantiomers
Two molecules are enantiomers if they can not be superimposed on each other spatially.



   
Explanation of esophagus (noun)
form: no plural

epithelium-lined part of the gut that connects the pharynx to the stomach

Sample of esophagus
Cancer of the esophagus is more common in heavy drinkers and smokers.



   
Explanation of ejaculation (noun)
form plural: ejaculations

the movement of semen out of the penis by contractile waves which occur at orgasm

Sample of ejaculation
Ejaculation is needed to position the sperm high up in the vagina to maximize the chances of conception.



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