dethatch

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de·thatch

 (dē-thăch′)
v. de·thatched, de·thatch·ing, de·thatch·es
v.tr.
To remove (dead grass) from a lawn, usually to aerate the soil.
v.intr.
To remove dead grass from a lawn.

de·thatch′er n.

dethatch

(diːˈθætʃ)
vb (tr)
to remove dead grass from (a lawn)
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References in periodicals archive ?
Medical supplies maker Boston Scientific issued a major recall after complaints that some units of its iCross Coronary Imaging Catheters dethatched inside of patients.
A lawn that is not regularly aerated and/or dethatched eventually resists water penetration due to compaction or thatch accumulation.
If your lawn needs to be dethatched, you can rent a vertical mower or hire a professional to do the job for you.
Like all subtropical grasses, however, kikuyu builds a mat of thatch and may go dormant in winter, during which time it turns brown - unless it is dethatched at the proper moment.