1 [with modifier] a container used for mixing ingredients by shaking:a cocktail shaker
a container with a pierced top from which a powdered substance such as flour or salt is poured by shaking.
2 (Shaker) a member of an American religious sect, the United Society of Believers in Christ’s Second Coming, established in England circa 1750 and living simply in celibate mixed communities.
[so named from the wild, ecstatic movements engaged in during worship]
[as modifier] denoting a style of elegantly functional furniture traditionally produced by Shaker communities.