The European blue titmouse. Gray nuns, the members of a religious order established in Montreal in 1745, whence branches were introduced into the united states in 1853; so called from the colour or their robe, and known in religion as sisters of Charity of Montreal. Nun buoy. See Buoy.
Origin: OE. Nunne, AS. Nunne, fr. L. Nonna nun, nonnus monk; cf. Gr,; of unknown origin. Cf. Nunnery.