mesomorphism
/ˌmɛsə(ʊ)ˈmɔːfɪz(ə)m/noun
1 Physical Chemical The state or property of being mesomorphic.
2 Botany = mesomorphy. rare.
3 Anthropometry. = mesomorphy. rare.
Origin
1930s; earliest use found in Transactions of the Faraday Society. From mesomorph- + -ism.