Isohume is a term used in meteorology to describe a line on a weather map connecting points of equal humidity levels. The term is derived from the Greek words "iso," meaning equal, and "hume," meaning moisture. Synonyms for isohume include isohumidity, humidity contour, and moisture line. These terms are often used interchangeably to describe the same phenomenon in weather forecasting and analysis. Isohumes are used by meteorologists and climatologists to understand and predict patterns of moisture and precipitation across a given region. They are crucial tools for understanding the complex interactions between atmospheric conditions and weather patterns.