1 Simple molecules [molecule: A molecule is a collection of two or more atoms held together by chemical bonds. 2  It is the smallest part of a substance that displays the properties of the substance.
Eon has a number of meanings. In Astronomy, an eon refers to 1 billion (109) years. But it also refers to a very long, unspecified period of time, or specific geologic stages of the Earth.
Acronym for End of Day used by colleagues of office spaces to conclude their day. A typical EOD should be initiated half an hour before the end of the workday. Preferably an EOD is initiated using an online messenger service such as MSN or Gtalk. EOD is often extended using parentheses and/or semicolon EOD();, indicating the use of a method in programming languages. Renji: EOD()!