rdfs:isDefinedBy is a subproperty of rdfs:seeAlso and meant for referencing the resource defining the term, not for making a literal comment about it. This replaces it with rdfs:comment.
You might also consider using IAO:definition instead, which is conventionally used across OBO ontologies for giving the definition of a term.
rdfs:isDefinedByis a subproperty ofrdfs:seeAlsoand meant for referencing the resource defining the term, not for making a literal comment about it. This replaces it withrdfs:comment.You might also consider using
IAO:definitioninstead, which is conventionally used across OBO ontologies for giving the definition of a term.