ratchet   (Sound)

The ratchet has 2 Senses.

• ratchet, ratch, rachet
• 爪車
• mechanical device consisting of a toothed wheel or rack engaged with a pawl that permits it to move in only one direction
• 一方向にしか動かすことを許さない歯止めに接続された歯のあるホイールとラックで成る機械装置

• rachet up, ratchet down, ratchet
• move by degrees in one direction only; "a ratcheting lopping tool"
• 一方向だけにある程度動く