What context can I use each word in?
Learn when and how to use these words with these examples!
isoline
Example
The isolines on this map show areas of equal atmospheric pressure. [isoline: noun]
Example
The isoline for 50 degrees Fahrenheit runs through this region. [isolines: plural noun]
isotherm
Example
The isotherms on this map show areas of equal temperature. [isotherm: noun]
Example
The isotherm for 20 degrees Celsius runs through this region. [isotherms: plural noun]
Good things to know
Which word is more common?
Isoline is a more common term than isotherm in everyday language, as it can be used to represent a wider range of variables. However, isotherm is more commonly used in technical fields such as meteorology and climate science.
What’s the difference in the tone of formality between isoline and isotherm?
Both isoline and isotherm are technical terms and are typically used in formal contexts, such as scientific reports or academic papers.
