Term: EVL anatomical surface
Name: EVL
Synonyms: enveloping layer
Definition: Outermost monolayer of cells surrounding the embryo that become very flattened in the blastula and give rise to the periderm. Sometimes used synonymously with periderm.
Ontology: Anatomy Ontology [ZFA:0000086]

Name: anatomical surface
Synonyms: surface
Definition: A 2D surface of an anatomical continuant.
Ontology: Spatial Ontology [BSPO:0000005]