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a n. (biochemistry) purine base found in DNA and RNA; pairs with thymine in DNA and with uracil in RNA
a n. a metric unit of length equal to one ten billionth of a meter (or 0.0001 micron); used to specify wavelengths of electromagnetic radiation
a n. any of several fat-soluble vitamins essential for normal vision; prevents night blindness or inflammation or dryness of the eyes
a n. one of the four nucleotides used in building DNA; all four nucleotides have a common phosphate group and a sugar (ribose)
a n. the 1st letter of the Roman alphabet
a n. the basic unit of electric current adopted under the Systeme International d'Unites
a n. the blood group whose red cells carry the A antigen
a battery n. battery used to heat the filaments of a vacuum tube
a bit r. to a small degree; somewhat
a capella singing n. singing without instrumental accompaniment
a cappella r. without musical accompaniment
a cappella s. without musical accompaniment
a cappella singing n. singing without instrumental accompaniment
a couple of s. more than one but indefinitely small in number
a few s. more than one but indefinitely small in number
 
English 'word lottery' pick

clank : n a loud resonant repeating noise; v make a clank

 
Based on WordNet 2.1, Copyright © 2005 Princeton University
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