a network topology consisting of a physical star and a logical ring.

(computing) A network topology in which, in the physical case, every node of a network is connected to exactly two other nodes: one node designated as upstream and the other as downstream. A given node receives data from its upstream node and sends data to its downstream node.

(computing) A network standard invented by IBM and later defined by the 802.5 subcommittee of the IEEE which provides for a network with a star ring topology, and which operates by passing a token frame around the logical ring.

(astronomy) The combined system or structure formed by all of the rings orbiting a planet

(bullfighting) The area in which bullfighting takes place.

(telephony) The ringing pattern heard by the dialer before the called party picks up the call.

(curling) The 12-foot diameter circle outermost in the house.

(chemistry, geology) Any of the secondary rings or bands resulting from rhythmic precipitation in a gel, or within a fluid-saturated rock.

(US) A prize or goal, often a chance to advance in one's career.

A ringneck dove.