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Definition of double helix, sterility, covalent bond, iron deficiency anemia, surfactant, vulva, potassium, acromegaly, thiamine, epilepsy

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

the double-stranded coiled structure of a DNA molecule

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

Definition of double helix
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Definition of sterility (noun)
form: no plural

inability to reproduce

Examples
Vasectomy may cause sterility.

Definition of sterility
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Definition of covalent bond (noun)
form plural: covalent bonds

bond between two atoms where electrons are exchanged between them

Examples
In a covalent bond each atom commonly gives an electron to form a shared pair.

Definition of covalent bond
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Definition of iron deficiency anemia (noun)
form plural: iron deficiency anemias

anemia caused by a lack of iron in the red blood cells

Examples
Iron deficiency anemia is more common in women because of menstruation.

Definition of iron deficiency anemia
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Definition of surfactant (noun)
form plural: surfactants

lipoprotein maintaining the stability of lung tissue

Examples
Surfactant facilitates the gas exchange across the membranes.

Definition of surfactant
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Definition of vulva (noun)
form plural: vulvae

the area around the opening to the female reproductive system

Examples
The vulva includes the clitoris and the labia and the vaginal opening.

Definition of vulva
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Definition of potassium (noun)
form: no plural

element with the chemical symbol K which is the main intracellular cation

Examples
Potassium has a role in nerve function and muscle contraction.

Definition of potassium
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Definition of acromegaly (noun)
form: no plural

chronic disease produced by an overactivity of the pituitary gland leading to an enlargement of bones

Examples
Acromegaly is caused by an overproduction of the growth hormone.

Definition of acromegaly
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Definition of thiamine (noun)
form: no plural

vitamin B1

Examples
Thiamine deficiency is common in alcoholics.

Definition of thiamine
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Definition of epilepsy (noun)
form: no plural

illness where the patient has fits

Examples
Epilepsy may occur after brain damage.

Definition of epilepsy
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