1. a person or thing that readily changes appearance, character, or principles
2. a Greek sea god capable of assuming different forms
Usage: mythology
3. a genus of rod-shaped bacteria found in soil and water
Usage: biology

Examples

• The politician was a proteus, changing his stance on every issue.
• She proved to be a proteus in the business world, adapting to each new challenge.
• In Greek mythology, Proteus could transform into any shape he desired.
• The ancient sailors told stories of Proteus rising from the sea.
• Scientists studied the proteus bacteria in the contaminated water sample.
• The proteus organism showed resistance to multiple antibiotics.