noun (n)

• a radioactive transuranic metallic element; discovered by bombarding uranium with helium atoms(noun.substance)

  Synonym:
  americium, atomic number 95
  

  source: wordnet30
• a master's degree in arts and sciences(noun.communication)

  Synonym:
  artium magister, ma, master of arts
  

  source: wordnet30
• modulation of the amplitude of the (radio) carrier wave(noun.communication)

  Synonym:
  amplitude modulation
  

  source: wordnet30