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

Encyclopedia: Light pollution

• booklet
• booklouse
• booklover
• bookmaker
• bookmaking
• bookman
• bookmark
• bookmarker
• bookmobile
• bookplate
• bookseller
• be active
• be adrift
• be after
• be amiss
• be at pains
• be born
• be due
• be full
• be given
• be intimate
• be my guest
• be off
• be on
• be on cloud nine