mesomorphic

adjective

1. pertaining to or having a muscular or sturdy body build characterized by the relative prominence of structures developed from the embryonic mesoderm (contrasted with ectomorphic, endomorphic).
2. Physical Chemistry. pertaining to or existing in an intermediate state, as a liquid crystal in the nematic or smectic state.

adjective Also: mesomorphous

1. chem existing in or concerned with an intermediate state of matter between a true liquid and a true solidSee also liquid crystal, smectic, nematic
2. relating to or being a mesomorph