1. Seizing the attention
   - eye-catching 
2. Likely to attract attention
   - catchy

See also: appealing, conspicuous

• diagnostic assay
• diagnostic procedure
• diagnostic program
• diagnostic technique
• diagnostic test
• diagnostician
• diagnostics
• diagonal
• diagonal matrix
• diagonalisable
• diagonalisation
• diagonalise
• diagonalizable
• diagonalization
• diagonalize
• diagonally
• diagram
• diagrammatic
• diagrammatical
• diagrammatically
• diagramming
• diagraph
• diakinesis
• dial
• dial phone