tread

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tread

1. the outer part of a tyre or wheel that makes contact with the road, esp the grooved surface of a pneumatic tyre
2. the part of a rail that wheels touch
3. Vet science an injury to a horse's foot caused by the opposite foot, or the foot of another horse

tread

1. The horizontal upper surface of a step; includes the rounded edge or nosing which extends over the riser.
See also: Step
2. The horizontal upper surface of a step; includes the rounded edge or nosing which extends over the riser.

tread

[tred]
(civil engineering)
The horizontal part of a step in a staircase.
The distance between two successive risers in a staircase.
(engineering)
The part of a wheel or tire that bears on the road or rail.

tread

The horizontal surface of a step; often has a rounded edge that extends beyond the upright face of the riser below it.
References in periodicals archive ?
Pasture Treading Before After Difference type(A) treatment(A) treading treading Cattle 18.
There were no significant interactions between pasture type and treading treatments (P [is greater than] 0.
vegetative cover and mean surface area damaged before and after treading by sheep (S) and cattle ([C.
Means within treading events followed by different letters are significantly different (P 0.
Cattle treading reduced vSWC, relative to untrodden soils, for only a brief period following the second cattle treading.
These data suggest that only small effects arise from single treading events, whereas those decreases in vSWC following livestock treading, reported by Willatt and Pullar (1983), probably arose from long-term cumulative effects.
The findings of the present study indicate that while the WFP, Atterburg limits, and CWC each point to deformation rather than compaction as the dominant process to be expected during the treading events, some compaction did occur (see net disturbance and N/A ratios; Table 2).
Apparent' compaction occurred in all treatments during the first treading event, since the average depression depth of the hooves was greater than the corresponding height of uplifted soil, resulting in a positive net disturbance.