reference mark
noun
Surveying.
a permanent mark set at a specific distance in a specific direction from a survey station so as to permit accurate reestablishment of the station.
any of various written or printed symbols, as an asterisk (*), dagger (†), or superscript number, used to indicate the presence of further information in a footnote, bibliography, or other text.
Origin of reference mark
First recorded in 1855–60
Words nearby reference mark
reference,
reference book,
reference electrode,
reference frame,
reference group,
reference mark,
reference values,
reference works,
referendum,
referent,
referential