This word is not acceptable for play in the US & UK dictionaries that are being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

ad. In the manner of a diagram; a graphic representation used to show how something works.

After the manner of a diagram; by means of a diagram or diagrams; schematically.

ad. in a diagrammatic manner

"While not all of the cartoons have survived, the remaining ones are bold compositions of subtle and varied formal structure, each probably capable of being diagrammatically deconstructed to show awe-inspiring complexity."