Wiktionary
bellwethers
n. (plural of bellwether English)
Usage examples of "bellwethers".
It was mainly made up of Liberal Party bellwethers, trying to test the shifting winds at an event they could attend without having to openly thumb their nose at New Kiev.
On the underside of the storm, ugly, bulging mammatus pouches appeared: bellwethers for heavy rainfall, hail, windbursts, and tornadoes.