a

美音音标: [eɪ] a
英音音标: [eɪ] result.0.expl|add:"

同义
a angstrom angstrom unit
词性
n
解释
a metric unit of length equal to one ten billionth of a meter (or 0.0001 micron); used to specify wavelengths of electromagnetic radiation
示例
None

同义
vitamin a antiophthalmic factor axerophthol a
词性
n
解释
any of several fat-soluble vitamins essential for normal vision; prevents night blindness or inflammation or dryness of the eyes
示例
None

同义
deoxyadenosine monophosphate a
词性
n
解释
one of the four nucleotides used in building DNA; all four nucleotides have a common phosphate group and a sugar (ribose)
示例
None

同义
a adenine
词性
n
解释
(biochemistry) purine base found in DNA and RNA; pairs with thymine in DNA and with uracil in RNA
示例
None

同义
a amp ampere
词性
n
解释
the basic unit of electric current adopted under the Systeme International d'Unites
示例
a typical household circuit carries 15 to 50 amps

同义
a
词性
n
解释
the 1st letter of the Roman alphabet
示例
None

同义
a group a type a
词性
n
解释
the blood group whose red cells carry the A antigen
示例
None