a a  /ə/


  1. (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
  2. (n) any of several fat-soluble vitamins essential for normal vision; prevents night blindness or inflammation or dryness of the eyes
  3. (n) one of the four nucleotides used in building DNA; all four nucleotides have a common phosphate group and a sugar (ribose)
  4. (n) (biochemistry) purine base found in DNA and RNA; pairs with thymine in DNA and with uracil in RNA
  5. (n) the basic unit of electric current adopted under the Systeme International d'Unites
  6. (n) the 1st letter of the Roman alphabet
  7. (n) the blood group whose red cells carry the A antigen


  1. A pathway to success

    Kevin Seitzer, pictured in 1985, had a professional baseball career that spanned from 1983 to 1997. Seitzer, a Lincoln native, reflects on his time in Legion Ball, Eastern Illinois University, and in the minor leagues.
    on June 13, 2013     Source: Lincoln Courier

  2. WCup a year away, Brazil vows to be ready

    BRASILIA, Brazil (AP) — Brazil is a year from the World Cup, admitting to mistakes in its preparations but vowing to be ready in time.
    on June 13, 2013     Source: Associated Press via Yahoo! News

  3. A long awaited 'Final Fantasy' returns at E3

    LOS ANGELES (AP) — It's a video game more than seven years in the making.
    on June 12, 2013     Source: Associated Press via Yahoo! News


  1. "At a time when jobs are in short supply, building exports is an imperative," Obama said.
    on Jul 7, 2010 By: Barack Obama Source: The Associated Press

  2. In a post on Twitter after the incident Hilton wrote: "Hey guys, there's a lot of crazy rumors going around. Just want you all to know the truth. Everything is completely fine. I was not charged or arrested, cause I didn't do anything. I was...
    on Jul 4, 2010 By: Paris Hilton Source: Taipei Times

  3. On her Twitter.com page, she wrote: "Didn't we do our nails as a joke with our friend? It had nothing to do w/(with) court...... it's an airbrush design from a stencil."
    on Jul 8, 2010 By: Lindsay Lohan Source: NDTV.com

Word of the Day
engender engender
/ɛn ˈdʒɛn dər /