1. Plural of axillary; feathers or structures located in or near the armpit or axilla of a bird or animal.
Usage: ornithology; anatomy
2. In botany, small leaves or bracts that grow in the angle between a stem and a leaf.
Usage: botany

Examples

• The bird's axillaries are covered with soft down feathers.
• Ornithologists examine the axillaries to identify bird species.
• The axillaries of the wing provide insulation and aerodynamic support.
• In this plant species, the axillaries develop into small flowers.
• The axillaries are positioned where the leaf meets the main stem.