noun
tape measure; measuring tape
A flexible ruler used for measuring length, often retractable or rolled up.
大工さんは巻尺で木材の長さを測った。
The carpenter measured the length of the lumber with a tape measure.
裁縫用の巻尺を買いました。
I bought a measuring tape for sewing.
Compound of 巻く (maku, 'to roll up') + 尺 (shaku, a traditional unit of length, here meaning 'measure'). The reading じゃく is a rendaku form of 尺.