mode

https://doi.org/10.1351/goldbook.M03958
The value of the @V06600@ occurring with the greatest frequency in the series of observations. A @B00644@ is one which contains two maxima. The use of mode when reporting results of chemical analysis is generally not recommended.
Sources:
PAC, 1990, 62, 2167. (Glossary of atmospheric chemistry terms (Recommendations 1990)) on page 2202 [Terms] [Paper]
PAC, 1994, 66, 595. (Nomenclature for the presentation of results of chemical analysis (IUPAC Recommendations 1994)) on page 603 [Terms] [Paper]