1. A microscopic particle smaller than 100nm

Encyclopedia: Nanoparticle

• blazon out
• blazonry
• bleach
• bleach liquor
• bleach out
• bleached
• bleacher
• bleachers
• bleaching agent
• bleaching clay
• bleaching earth
• bleaching powder
• bleak
• bleakly
• bleakness
• blear
• blear-eyed
• blearily
• bleary
• bleary-eyed
• bleat
• bleb
• blebbed
• blebby
• Blechnaceae