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MCAT Word List # MCAT/M105

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  Word Explanations equilibrium, polysaccharide, platelet, face, lacrimal gland, membrane potential, vasectomy, lumen, tympanic membrane, zinc


   
Explanation of equilibrium (noun)
form: no plural

state of a body or physical system at rest

Sample of equilibrium
Punctuated equilibrium refers to the characteristic of evolution having long periods of stasis 'punctuated' by evolutionary changes occuring in spurts.



   
Explanation of polysaccharide (noun)
form plural: polysaccharides

carbohydrate containing many sugar units

Sample of polysaccharide
Polysaccharides are used for energy storage and as structural components in plant cell walls.



   
Explanation of platelet (noun)
form plural: platelets

thrombocyte; cytoplasmic body with the function to promote blood clotting

Sample of platelet
Platelets do not consist of nucleins and facilitate clot formation.



   
Explanation of face (noun)
form plural: faces

front of the head including forehead, cheeks, eyes, nose and chin

Sample of face
The face can express emotions.



   
Explanation of lacrimal gland (noun)
form plural: lacrimal glands

gland that makes tears

Sample of lacrimal gland
The lacrimal gland lies beneath the upper eyelid.



   
Explanation of membrane potential (noun)
form: no plural

the difference in potential between the inside and the outside of a cell

Sample of membrane potential
The membrane potential exists because there is an ionic gradient (difference) between the inside and outside of the cell.



   
Explanation of vasectomy (noun)
form plural: vasectomies

operation where the vas deferens are cut leading to sterility

Sample of vasectomy
Bilateral vasectomy is an increasingly popular means of birth control.



   
Explanation of lumen (noun)
form plural: lumens

internal diameter of blood vessels; hole

Sample of lumen
The lumen of arteries is narrowed by arteriosclerosis.



   
Explanation of tympanic membrane (noun)
form plural: tympanic membranes

the eardrum

Sample of tympanic membrane
The tympanic membrane is in the middle ear.



   
Explanation of zinc (noun)
form: no plural

a metal showing few properties of the transition metals

Sample of zinc
Zinc is used to coat iron to stop it rusting.



  Explain the words equilibrium, polysaccharide, platelet, face, lacrimal gland, membrane potential, vasectomy, lumen, tympanic membrane, zinc

  Preparation book: Fundamentals of Biomechanics: Equilibrium

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     MCAT verbal preparation: Vocabulary Quizzes: Examples of Nouns         MCAT preparation test: Word quiz questions: Free Online Nouns Game         Free MCAT Words: (printable version)         Meaning of equilibrium, polysaccharide, platelet, face, lacrimal gland, membrane potential, vasectomy