3 links
Big Number Names
g42.org
List of words used for powers of ten. For instance, novemtrigintillion=10^120. Also has metric prefixes, metric numeric symbols, and corresponding European equivalents.
Earliest Known Uses of Some of the Words of Mathematics
members.aol.com
Alphabetical listing of historical terms used in mathematics with bibliography.
The Internet Glossary of Statistical Terms
animatedsoftware.com
Glossary of terms organized according to learning order for those unfamiliar with the subject, and also an alphabetical list for already familiar with statistical procedure.