mesothermal
adjective/ˌmezəʊˈθɜːməl/, /ˌmiːzəʊˈθɜːməl/
/ˌmezəʊˈθɜːrməl/, /ˌmiːzəʊˈθɜːrməl/
[only before noun]- (of climate) not very hot and not very cold
synonym temperate compare megathermal, microthermal不太热也不太冷 Word Originearly 20th cent.: earliest use found in Bulletin of the Torrey Botanical Club. From meso- + thermal.