1. (

• dissemination ,
• airing ,
• public_exposure ,
• spreading

) the opening of a subject to widespread discussion and debate ;

2. (

• dissemination ,
• diffusion

) the property of being diffused or dispersed ;

3. (

• dispersion ,
• dispersal ,
• dissemination ,
• diffusion

) the act of dispersing or diffusing something; "the dispersion of the troops"; "the diffusion of knowledge" ;