{italics (terms introduced
or defined)} Terms are defined throughout this
International Standard, indicated by
italic type. Terms explicitly defined
in this International Standard are not to be presumed to refer implicitly to
similar terms defined elsewhere. Terms not defined in this International Standard
are to be interpreted according to the
Webster's Third New International
Dictionary of the English Language. Informal descriptions of some terms
are also given in
Annex N, ``
Glossary''.