From BiblePortal Wikipedia

Webster's Dictionary [1]

(1): ( n.) A series of prayers (see Note below) arranged to be recited in order, on beads; also, a string of beads by which the prayers are counted.

(2): ( n.) A bed of roses, or place where roses grow.

(3): ( n.) A chapelet; a garland; a series or collection, as of beautiful thoughts or of literary selections.

(4): ( n.) A coin bearing the figure of a rose, fraudulently circulated in Ireland in the 13th century for a penny.

Charles Buck Theological Dictionary [2]

A bunch or string of beads on which the Roman Catholics count their prayers.

The Nuttall Encyclopedia [3]

A string of beads used by Hindus, Buddhists, Mohammedans, and Roman Catholics as an aid to the memory during devotional exercises; the rosary of the Roman Catholics consists of beads of two sizes, the larger ones mark the number of Paternosters and the smaller the number of Ave Marias repeated; of the former there are usually five, of the latter fifty.