1. Plural of apteryx; flightless birds native to New Zealand, characterized by small vestigial wings, long beaks, and brown plumage.
Usage: Also commonly called kiwis or kiwi birds.; Apteryx is the scientific genus name.

Examples

• Apteryxes are among the most unusual birds in the world.
• The conservation program focuses on protecting apteryxes in their native New Zealand habitat.
• Unlike most birds, apteryxes have nostrils at the tip of their long beaks.
• Several species of apteryxes are endangered due to habitat loss.
• Ornithologists study apteryxes to understand how flightless birds evolved.