1. An excess of artificial light, especially near urban developments, reducing visibility of stars etc. in the night sky

Encyclopedia: Light pollution

• sexual abuse
• sexual activity
• sexual arousal
• sexual assault
• sexual attraction
• sexual characteristic
• sexual climax
• sexual congress
• sexual conquest
• sexual desire
• sexual discrimination
• sexual harassment
• sexual immorality
• sexual intercourse
• sexual inversion
• sexual love
• sexual morality
• sexual perversion
• sexual pleasure
• sexual practice
• sexual relation
• sexual relationship
• sexual reproduction
• sexual union
• sexual urge