1. am(n = noun.substance) americium, atomic number 95 - a radioactive transuranic metallic element; discovered by bombarding uranium with helium atoms;
is a kind of metal, metallic element
2. am(n = noun.communication) artium magister, ma, master of arts - a master's degree in arts and sciences;
is a kind of master's degree
3. am(n = noun.communication) amplitude modulation - modulation of the amplitude of the (radio) carrier wave;
is a kind of modulation
The first person singular of the verb be, in the indicative mode, present tense. See Be. [1913 Webster]
"God said unto Moses, I am that am." [1913 Webster]
am, abbr.
1 amplitude modulation.
2 US Master of Arts.
3 Member of the Order of Australia.
Etymology:
(sense 2) L artium Magister
am, symb. Chem. the element americium.
am, 1st person sing. present of BE.