1. plural of alder; deciduous trees or shrubs of the birch family that typically grow in wet areas

Examples

• The alders along the riverbank provided shade for the picnic area.
• Red alders are common in the Pacific Northwest.
• The wetland was dominated by alders and willows.
• Birds nested in the dense alders near the marsh.
• The logger cleared the alders to make room for the new road.
• Young alders quickly colonized the disturbed soil.