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 ?
Florida Keys coastguard Nick Ameen said: "It's pretty amazing that the group was able to tread water for so long in those rough seas.
It was most unpleasant, watching him as he thrashed about without any apparent design or purpose other than to just tread water and stay afloat
Let Miss Thing tread water in the shallow end of the pool--you're too busy having fun with your real friends to get caught up in the cattiness.
One new building might be plenty, two will tilt the market and three, they say, may mean a strike out for buildings left to tread water in an atmosphere of increasing vacancy rates.
Nationwide chief economist Robert Gardner said: "Prices continued to tread water in September.
DURHAM University have become the first North East team promoted to the men's England Hockey League - but director of hockey Gavin Featherstone has warned they must now decide if they want to continue progressing or merely tread water.