Elucidation: A realizable entity whose realization is an end- or goal-directed activity of its bearer that exists in the bearer in virtue of its having a certain physical makeup as a result of either natural selection (in the case of biological entities) or intentional design (in the case of artifacts. Source: Robert Arp, Barry Smith, and Andrew D. Spear: Building Ontologies with Basic Formal Ontology. The MIT Press Cambridge, Massachusetts London, England. ©2015 Massachusetts Institute of Technology. ISBN 978-0-262-52781-1, Glossary. https://www.ebi.ac.uk/ols4/ontologies/bfo/classes/http%253A%252F%252Fpurl.obolibrary.org%252Fobo%252FBFO_0000034