Ringelmann
/ˈrɪŋɡlman/noun
Used attributive and (now rare ) in the genitive with reference to a method of estimating the darkness and density of smoke by visual comparison with a chart bearing different shades of grey (formed by lines ruled with different spacings or different thicknesses); especially in Ringelmann chart.
Origin
Late 19th century. From the name of Maximilien Ringelmann, French professor of agricultural engineering, who devised the method.
- watermark disease
- water mass
- water maze
- water meadow
- water meal
- water measure
- water measurer
- watermelon
- water merchant
- water meter
- water milfoil
- watermill
- water miller
- watermill wheel
- water mint
- water mite
- water moccasin
- water mold
- water mole
- water monarch
- water-monger
- water mongoose
- water monitor
- water moss
- water moth