I. ˈ ̷ ̷ ̷ ̷ˌ ̷ ̷ noun
Etymology: Middle English wedercoc, from weder weather + cok, coc cock
1.
a. : a vane often in the figure of a cock mounted so as to turn freely with the wind and show its direction
b. : a person or thing that changes readily or often : one who veers with every change of current opinion
weathercocks before the prevailing winds of doctrine — Scribner's
2. : jewelweed a
II. transitive verb
1. : to supply with a weathercock
weathercock a steeple
2. : to serve as a weathercock for
weathercock the forces of revolution
intransitive verb
: to behave like a weathercock ; specifically of an airplane : to turn into the wind