fat pad morphology trait epididymal fat pad morphology trait Any measurable or observable characteristic related to the shape, structure, color or pattern of the encapsulated adipose tissue associated with the elongated structure connected to the posterior surface of the testes that transports, stores, and matures spermatozoa between testes and vas deferens. smb epididymal fat depot morphology trait Trait.ontology VT:0015000 2009-08-26T02:25:25Z