— Special Form: define-record-type <type-name> (<constructor-name> <field-tag> ...) <predicate-name> <field-spec> ...

Where

          <field-spec> == (<field-tag> <accessor-name>)
                       == (<field-tag> <accessor-name> <modifier-name>)
          

define-record-type is a syntax wrapper for the SLIB record module.