Truncation is like a wildcard. Added to the stem of a word, it will find that stem plus anything that comes after it. The symbol used to truncate a word depends upon the index, database, or Web search engine you are using.
| psychol? | will return records on psychology, psychological,
psychologist. ? is used as the truncation symbol, for example, in ABI/Inform and WestCat. |
| environ* | will return records on environment, environments,
environmental. * is used as the truncation symbol in Wilson Business Abstracts and Periodical Abstracts. |