|For Standard||COM v2.1|
The basic gml:Definition element specifies a definition, which can be included in or referenced by a dictionary.
The content model for a generic definition is a derivation from gml:AbstractGMLType.
The gml:description property element shall hold the definition if this can be captured in a simple text string, or the gml:descriptionReference property element may carry a link to a description elsewhere.
The gml:identifier element shall provide one identifier identifying this definition. The identifier shall be unique within the dictionaries using this definition.
The gml:name elements shall provide zero or more terms and synonyms for which this is the definition.
The gml:remarks element shall be used to hold additional textual information that is not conceptually part of the definition but is useful in understanding the definition.