diff --git a/src/cco-extensions/ModalRelationOntology.ttl b/src/cco-extensions/ModalRelationOntology.ttl
index 61b9eac..43a62c7 100644
--- a/src/cco-extensions/ModalRelationOntology.ttl
+++ b/src/cco-extensions/ModalRelationOntology.ttl
@@ -1559,7 +1559,7 @@ mro:ont00001859 rdf:type owl:ObjectProperty ;
                 rdfs:domain cco:ont00001180 ;
                 rdfs:range cco:ont00001203 ;
                 rdfs:label "is delimited by"@en ;
-                <http://www.w3.org/2004/02/skos/core#definition> "An instance of Organization o1 is_delimited_by some Delimiting Domain dd1 iff dd1 is the area within which o1 can legally operate."@en ;
+                <http://www.w3.org/2004/02/skos/core#definition> "x is_delimited_by y iff x is an instance of Organization and y is an instance of Delimiting Domain and y delimits x."@en ;
                 cco:ont00001754 "https://en.wikipedia.org/w/index.php?title=Boundary_delimitation&oldid=1039137603"^^xsd:anyURI ;
                 cco:ont00001760 <https://www.commoncoreontologies.org/ModalRelationOntology> .