a meaning

Pronunciation:   "a" in a sentence
Article: a  u
  1. Indefinite article, "an" is used before a vowel sound, "a" otherwise
    - an
Noun: a  u
  1. The 1st letter of the Roman alphabet
    - A
Noun: A  ey
  1. A metric unit of length equal to one ten billionth of a meter (or 0.0001 micron); used to specify wavelengths of electromagnetic radiation
    - angstrom, angstrom unit
  2. Any of several fat-soluble vitamins essential for normal vision; prevents night blindness or inflammation or dryness of the eyes
    - vitamin A, antiophthalmic factor, axerophthol
  3. The blood group whose red cells carry the A antigen
    - type A, group A
  4. (biochemistry) purine base found in DNA and RNA; pairs with thymine in DNA and with uracil in RNA
    - adenine
  5. One of the four nucleotides used in building DNA; all four nucleotides have a common phosphate group and a sugar (ribose)
    - deoxyadenosine monophosphate
Noun: Å
  1. The basic unit of electric current adopted under the Système International d'Unités
    "a typical household circuit carries 15 to 50 amps"
    - ampere, amp

Derived forms: As

Type of: alphabetic character, base, blood group, blood type, current unit, fat-soluble vitamin, letter, letter of the alphabet, metric linear unit, nucleotide, purine

Part of: abamp, abampere, deoxyribonucleic acid, desoxyribonucleic acid, DNA, Latin alphabet, micromillimeter [US], micromillimetre [Brit, Cdn], millimicron, nanometer [US], nanometre [Brit, Cdn], nm, ribonucleic acid, RNA, Roman alphabet

Encyclopedia: A A, Vest-Agder A, You're Adorable A, Tranoy A, Norway A, Sweden A,a-trehalose phosphorylase A,b-unsaturated carbonyl compound A,a-phosphotrehalase A, a novel A, an A, Moskenes A, A Prime A, A novel A, A Novel A,N,N-TMT A, A' A, Lavangen A, Meldal A, Ibestad A, Afjord A, Andoy

[American slang]
Fig. very closely similar in appearance to someone else. (Typically: be ~; look like ~.)
  You are sure a dead ringer for my brother.
   Isn't he a ringer for Chuck?


Abbr. for ampere, a unit of electric current.


Abbr. for area.

See ampere

1. Abbreviation of ATTO- (prefix).
2. Abbreviation of AREA.
3. Abbreviation of ACCELERATION.
4. Abbreviation of ANODE.
5. Obsolete abbreviation of cgs prefix AB-.


More:   Next
  1. she rose and took a tentative step backward.
  2. he asked a little about my life history.
  3. he forced a laugh to his shaking lips.
  4. bismarck ruled germany by a strong hand.
  5. the resulting radiation is known as airglow.

Related Words

  1. \sqcup meaning
  2. \sqsubseteq meaning
  3. \subseteq meaning
  4. \t meaning
  5. \uparrow meaning
  6. a & e meaning
  7. a (big) head meaning
  8. a (damn) sight better meaning
  9. a (good) grasp of sth meaning
  10. a (good) working over meaning
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