Regular Expression Search for glossary terms (regular expression allowed) Begin withContainsExact termSounds like GlossariesISB Nomenclature All A B C D E F G H I J K L M N O P Q R S T U V W X Y Z Term Main definition Regular Expression A method of expressing multiple character strings as one character string. In IMC, some proprietary expressions are used. Hits - 883 Synonyms: regular expression