Obs. exc. Hist. A follower of John Biddle (died 1662), styled the father of the English Unitarians.
1780. Kippis, Biogr. Brit., II. 307/2, note. The adherents to Mr. Biddle were called Biddellians; but this name was lost in the more common appellation of Socinians, or, what they preferred, Unitarians.
18823. Schaff, in Herzogs Encycl. Rel. Knowl., I. 296/1.