Definitions for math terms are available online at Math.com and MathWords.com. MathisFun.com provides illustrated definition of math words, and it offers links to further reading on each math term, as of 2015.
In addition to a free math term glossary, Math.com provides homework help, practice tests, math games and tools for a variety of math subjects. These subjects include algebra, geometry, trigonometry, statistics and calculus. The site also features formulas, tables, references and study tips.
MathWords.com offers a more extensive and mature dictionary for math terms than Math.com. This website features information on a variety of math subjects, including advanced topics. Additionally, MathWords.com provides an index for mathematical numbers and symbols. This index defines terms that relate to arithmetic, number sets and common symbols used in math. Another index for sets, proofs and logic terminology is offered.
MathWords.com also features a section for real word application. This index contains term definitions from algebra to calculus that have to do with applications from physics, financing and modeling.
To browse math definitions on MathisFun.com, simply select the letter the desired term starts with. It also provides math worksheets, games and puzzles.