The addition of a symbol to a word root in a keywords search to retrieve variant endings on the root. Truncation is particularly useful in retrieving both the singular and the plural forms of a word in the same search. In most online catalogs and electronic databases, the truncation symbol is the asterisk (*); however, there are some notable exceptions -- in OVID search software, the end truncation symbol is the dollar sign ($). See also: wildcard and Boolean searching.
Example: theat* or drama*
This search retrieves records containing theater, theatre, theatrical, theatrically, dramatic, dramatically, etc.