1. the quality or state of being amphibious; the ability to live or operate both on land and in water
Usage: often used in biological or military contexts
2. the capacity to function in or adapt to two different environments or modes of operation
Usage: figurative use

Examples

• The amphibiousness of frogs allows them to thrive in both aquatic and terrestrial habitats.
• Military strategists valued the amphibiousness of the new vehicle for coastal operations.
• The amphibiousness of the organization enabled it to succeed in both digital and traditional markets.
• Scientists study the amphibiousness of certain salamanders to understand evolutionary adaptation.
• The amphibiousness of the design made it suitable for use in swamps and on dry land.