diff --git a/src/cco-modules/ArtifactOntology.ttl b/src/cco-modules/ArtifactOntology.ttl
index 0905682..511fd5a 100644
--- a/src/cco-modules/ArtifactOntology.ttl
+++ b/src/cco-modules/ArtifactOntology.ttl
@@ -360,7 +360,7 @@ cco:Banknote rdf:type owl:Class ;
 ###  http://www.ontologyrepository.com/CommonCoreOntologies/Barcode
 cco:Barcode rdf:type owl:Class ;
             rdfs:subClassOf cco:InformationBearingArtifact ;
-            cco:definition "An Information Bearing Artifact that consist of machine-readable symbols."@en ;
+            cco:definition "An Information Bearing Artifact that is designed to bear one or more geometric shapes that concretize some Directive Information Content Entity."@en ;
             cco:definition_source "https://en.wikipedia.org/w/index.php?title=Barcode&oldid=1059844765"^^xsd:anyURI ;
             cco:is_curated_in_ontology "http://www.ontologyrepository.com/CommonCoreOntologies/Mid/ArtifactOntology"^^xsd:anyURI ;
             rdfs:comment "For information on types of barcodes, see: https://www.scandit.com/types-barcodes-choosing-right-barcode/"@en ;
@@ -2806,7 +2806,7 @@ cco:OcularProsthesis rdf:type owl:Class ;
 ###  http://www.ontologyrepository.com/CommonCoreOntologies/OneDimensionalBarcode
 cco:OneDimensionalBarcode rdf:type owl:Class ;
                           rdfs:subClassOf cco:Barcode ;
-                          cco:definition "A Barcode whose concretizations consist of one-dimensional symbols arranged as parallel lines."@en ;
+                          cco:definition "A Barcode that is designed to bear parallel lines of varying widths and spacing that concretize some Directive Information Content Entity."@en ;
                           cco:is_curated_in_ontology "http://www.ontologyrepository.com/CommonCoreOntologies/Mid/ArtifactOntology"^^xsd:anyURI ;
                           rdfs:label "One-Dimensional Barcode"@en .
 
@@ -4768,7 +4768,7 @@ cco:TurbojetAirBreathingJetEngine rdf:type owl:Class ;
 ###  http://www.ontologyrepository.com/CommonCoreOntologies/TwoDimensionalBarCode
 cco:TwoDimensionalBarCode rdf:type owl:Class ;
                           rdfs:subClassOf cco:Barcode ;
-                          cco:definition "A Barcode whose concretizations consist of two-dimensional symbol patterns."@en ;
+                          cco:definition "A Barcode that is designed to bear lines of varying widths, spacing, height, and color that concretize some Directive Information Content Entity."@en ;
                           cco:is_curated_in_ontology "http://www.ontologyrepository.com/CommonCoreOntologies/Mid/ArtifactOntology"^^xsd:anyURI ;
                           rdfs:label "Two-Dimensional Barcode"@en .