weathercock (plural weathercocks)

  1. A weather vane, sometimes in the form of a cockerel.
  2. (figuratively) One who veers with every change of current opinion; a fickle, inconstant person.
  3. (Chiefly US and Canada) A wind pump style where the top of it behaves like a weather vane, moving with the wind direction, but also with a wheel attached to measure wind speed.
Translations Translations Verb

weathercock (weathercocks, present participle weathercocking; past and past participle weathercocked)

  1. (intransitive, of a boat) To turn upwind because of the difference in water pressure on two sides.
  2. (intransitive, of an airplane or missile) To veer into the direction of the oncoming (relative) wind.
  3. (transitive) To act as a weathercock for.

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