1. of, relating to, or characteristic of the Amazon River or the Amazon rainforest region in South America
Usage: often capitalized when referring to the specific geographic region
2. of or relating to the Amazons, a legendary race of female warriors in Greek mythology
Usage: often capitalized; typically used in historical or mythological contexts

Examples

• The Amazonian rainforest is home to millions of species of plants and animals.
• Scientists study Amazonian ecosystems to understand biodiversity.
• The river's Amazonian basin covers an enormous area of South America.
• In Greek mythology, Amazonian warriors were known for their strength and skill.
• Deforestation threatens Amazonian indigenous communities and wildlife.
• The Amazonian region produces much of the world's oxygen.