Isallotherm

[ahy-sal-uh-thurm] /aɪˈsæl əˌθɜrm/

noun, Meteorology.
1.
a line on a weather map or chart connecting points having equal temperature variations within a given period of time.

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Isanomal
[ahy-suh-nom-uh l] /ˌaɪ səˈnɒm əl/ noun, Meteorology. 1. a line on a map or chart connecting points having an equal anomaly of a meteorological quantity.
Isanthous
[ahy-san-thuh s] /aɪˈsæn θəs/ adjective, Botany. 1. having regular flowers.