1. Plural of casuarina; tropical and subtropical trees or shrubs of the family Casuarinaceae, native to Australia and nearby regions, characterized by jointed, needle-like branches and cone-like fruits.
Usage: Also called she-oak or Australian pine; Commonly used in landscaping and coastal erosion control

Examples

• The casuarinas along the beach help prevent sand erosion.
• Casuarinas are popular ornamental trees in warm climates.
• The park was lined with tall casuarinas that swayed in the ocean breeze.
• Casuarinas thrive in sandy, well-drained soils.
• Many coastal regions plant casuarinas for their hardiness and aesthetic appeal.