cerebellum morphology trait brain molecular composition trait cerebellum molecular composition trait 2025-12-02T22:40:42Z Any measurable or observable characteristic related to the proportions of proteins, minerals, nutrients, gases, or other substances in the part of the metencephalon that lies in the posterior cranial fossa dorsal to the pons and medulla that is concerned with the coordination of movement and learning of motor skills. Trait.ontology VT:0011260