Explanation and meaning of a.

/eɪ/

noun
one of the four nucleotides used in building DNA; all four nucleotides have a common phosphate group and a sugar (ribose)
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Similar:

deoxyadenosine monophosphate

type of:
nucleotide base
noun
the blood group whose red cells carry the A antigen
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Similar:

group a type a

type of:
blood group blood type
noun
any of several fat-soluble vitamins essential for normal vision; prevents night blindness or inflammation or dryness of the eyes
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Similar:

antiophthalmic factor axerophthol vitamin a

type of:
fat-soluble vitamin
noun
the basic unit of electric current adopted under the Systeme International d'Unites
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"a typical household circuit carries 15 to 50 amps"

Similar:

amp ampere

type of:
current unit

part of:
abamp abampere
noun
a metric unit of length equal to one ten billionth of a meter (or 0.0001 micron); used to specify wavelengths of electromagnetic radiation
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angstrom angstrom unit

type of:
metric linear unit

part of:
micromillimetre nanometer millimicron nanometre nm micromillimeter
noun
(biochemistry) purine base found in DNA and RNA; pairs with thymine in DNA and with uracil in RNA
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Similar:

adenine

type of:
purine
noun
the 1st letter of the Roman alphabet
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type of:
letter alphabetic character letter of the alphabet

Explanation of a

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