• liophilic,
• bivvium,
• viofilm,
• niofilm,
• hiofilm,
• giofilm,
• buofilm,
• boifilm,
• Byofilm,
• biofilma,
• biofils,
• biofiz,
• biofixx,
• biofiltur,
• biofiltar,
• Bismila,
• Giofila,
• Biycolm,
• Bialfilm,
• Biirofilm

• bloom,
• buffalo,
• baffle,
• Befell,
• befall,
• film.

The adjective form of the word "Biofilm" is "biofilmic".

The plural form of "Biofilm" is "Biofilms"

The singular form of the word "Biofilm" is "Biofilm". The word is already a singular noun, referring to a slimy film made up of microorganisms that stick to surfaces.