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MCAT Word List # MCAT/M73

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  Word Explanations digit, cotyledon, hydrogen bond, cretinism, magnification, conformation, vapor, valve, epigastric, eardrum


   
Explanation of digit (noun)
form plural: digits

a finger or toe

Sample of digit
Each hand has 5 digits.



   
Explanation of cotyledon (noun)
form plural: cotyledons

seed leaf of the embryo of a plant

Sample of cotyledon
The cotyledon contains food ready for germination.



   
Explanation of hydrogen bond (noun)
form plural: hydrogen bonds

bond that holds water molecules together

Sample of hydrogen bond
Hydrogen bonds are weak bonds.



   
Explanation of cretinism (noun)
form: no plural

hereditary condition characterized by mental retardation; dystrophy of bones and low basal metabolism caused by deficiency of the thyroid hormone in prenatal development

Sample of cretinism
Cretinism is hypothyrodism in newborn infants.



   
Explanation of magnification (noun)
form: no plural

enlargement; sharpening

Sample of magnification
Magnification is the enhancement of size of an object being viewed with a microscope.



   
Explanation of conformation (noun)
form plural: conformations

a 3-dimensional shape

Sample of conformation
The conformation of a protein molecule determines its function.



   
Explanation of vapor (noun)
form plural: vapors

droplets of liquid in the air that form smoke; mist or fumes when a substance evaporates; barely visible and cloudly matter

Sample of vapor
Vapors do not always follow the ideal gas laws.
Bromine can become vapor.



   
Explanation of valve (noun)
form plural: valves

outlet in blood vessels

Sample of valve
The atrioventricular valves prevent backflow of blood into the atria.



   
Explanation of epigastric (adjective)
referring to the upper abdomen

Sample of epigastric
The stomach is in the epigastric region.



   
Explanation of eardrum (noun)
form plural: eardrums

tympanic membrane; membrane separating the middle ear from the outer ear

Sample of eardrum
The eardrum transmits sound vibrations to the three ear bones (ossicles).



  Explain the words digit, cotyledon, hydrogen bond, cretinism, magnification, conformation, vapor, valve, epigastric, eardrum

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     MCAT test: Vocabulary Words: English Nouns Adjectives         MCAT test: Word games: Free Online Noun Adjective Game         MCAT Vocabulary: (printable version)         Meaning of digit, cotyledon, hydrogen bond, cretinism, magnification, conformation, vapor, valve