踏ふみ面めん

also: ふみづら

Meanings

1

tread (of a wheel); step (of a stair)

Technical term for the horizontal surface that is stepped on: the tread of a vehicle's wheel or tire, or the horizontal part of a stair step.

タイヤの踏ふみ面めんがすり減へっている。
The tread of the tire is worn down.
階かい段だんの踏ふみ面めんの幅はばを広ひろくすると安あん全ぜんだ。
Widening the stair tread makes it safer.