mode

The value of the variable occurring with the greatest frequency in the series of observations. A bimodal distribution is one which contains two maxima. The use of mode when reporting results of chemical analysis is generally not recommended.
Source:
PAC, 1994, 66, 595 (Nomenclature for the presentation of results of chemical analysis (IUPAC Recommendations 1994)) on page 603
PAC, 1990, 62, 2167 (Glossary of atmospheric chemistry terms (Recommendations 1990)) on page 2202