1. A radioactive isotope of chlorine

Type of: atomic number 17, chlorine, Cl

• banteng
• banter
• blockaded
• blockader
• blockading
• blockage
• blockbuster
• blocked
• blocker
• blockhead
• blockheaded
• blockhouse
• blocking
• blocking agent
• blockish
• blocky
• Bloemfontein
• blog
• blogger
• blogosphere
• Blok
• bloke
• blokeish
• blokey
• blokish