... >> Natural Science >> General Science Terminology >> Subscript
Definition: 1. said of a character, especially one in chemistry and maths: set below the level of the line, eg the number 2 in H2O. 2. a character that is in this position, eg [18c.]
Source: Chambers 21st Century Dictionary. London: Chambers Harrap, 2001. Credo Reference. Web. 07 August 2012.