#1 AM n. [americium, Am, atomic number 95] a radioactive transuranic metallic element; discovered by bombarding uranium with helium atoms. wn
#2 AM n. [Master of Arts, MA, Artium Magister] a master's degree in arts and sciences. wn
#3 AM n. [amplitude modulation] modulation of the amplitude of the (radio) carrier wave. wn
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