Meaning of RATCHET in English

RATCHET

n. & v.

--n.

1. a set of teeth on the edge of a bar or wheel in which a device engages to ensure motion in one direction only.

2 (in full ratchet-wheel) a wheel with a rim so toothed.

--v. (ratcheted, ratcheting)

1. tr. a provide with a ratchet. b make into a ratchet.

2 tr. & intr. move as under the control of a ratchet.

Etymology: F rochet blunt lance-head, bobbin, ratchet, etc., prob. ult. f. Gmc

Oxford English vocab.      Оксфордский английский словарь.