Crossword clues for grouser
The Collaborative International Dictionary
Grouser \Grou"ser\, n. ( Dredging, Pile Driving, etc.) A pointed timber attached to a boat and sliding vertically, to thrust into the ground as a means of anchorage.
Wiktionary
n. 1 A person who grouses; a grumbler 2 (context nautical English) A temporary pile driven into the bottom of a river to hold a boat in position; a spud 3 (context engineering English) A protrusion on the surface of a wheel or continuous track segment, intended to increase traction in soil, snow, or other loose material
Wikipedia
Grousers are devices intended to increase the traction of continuous tracks, especially in loose material such as soil or snow. This is done by increasing contact with the ground with protrusions, similar to conventional tire treads, and analogous to athletes' cleated shoes. On tanks and armoured vehicles, grousers are usually pads attached to the tracks; but on construction vehicles they may take the form of flat plates or bars.
Similar traction-improving patterns have been implemented on the surface of the wheels on tractors. These include strakes, where material is removed from the surface of the wheel to achieve protrusion; cleats, with spikes instead of straight bars; and lugs with raised rubber on a tire tread.
Usage examples of "grouser".
So even the perpetual grousers had to admit that things were not as bad as they might have been.
To me, informers on duty are solitary grousers, not given to domestic chat.