1. a machine or tool used to remove thatch (dead grass and moss) from a lawn or roof
Usage: commonly used in lawn care and gardening

Examples

• We rented a dethatcher to remove the buildup of dead grass from our lawn.
• The dethatcher made quick work of the thick thatch layer on the roof.
• A good dethatcher can improve lawn health by allowing water and nutrients to reach the soil.
• He used a manual dethatcher for small patches rather than renting a motorized one.
• The landscaper recommended using a dethatcher every few years to maintain the yard.