A
UKə
US(article) [ə](noun) [eı
معنی فارسی
اولين حرف الفباي لاتين ، يک ، حرف تعريف ،
هر ، هر يک ، در
ریشه و کاربرد
ریشه
From Latin 'A', from Greek 'Alpha', from Phoenician 'Aleph'.
مثال
- The word 'apple' starts with an 'A'.
- She got an 'A' on her test.
- I have a book.
ترکیبهای رایج
A book A car A dog A person A thing
تعریف انگلیسی
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
- any of several fat-soluble vitamins essential for normal vision; prevents night blindness or inflammation or dryness of the eyes
- one of the four nucleotides used in building DNA; all four nucleotides have a common phosphate group and a sugar (ribose)
- (biochemistry) purine base found in DNA and RNA; pairs with thymine in DNA and with uracil in RNA “Substance Holonyms: deoxyribonucleic acid, desoxyribonucleic acid, DNA, ribonucleic acid, RNA”
- the basic unit of electric current adopted under the Systeme International d'Unites “a typical household circuit carries 15 to 50 amps”
- the 1st letter of the Roman alphabet
- the blood group whose red cells carry the A antigen