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ring pull
a ring-shaped extension on the top of a can or tin, which one pulls to open it.
wedding ring
One of a pair or rings exchanged by bride and groom in a wedding ceremony, and afterwards worn by them; symbolizes continuous fidelity.
ring field
(cricket) An attacking ring of infielders, square and in front of the wicket - point, cover, mid off, mid on, midwicket, square leg.
ring a bell
(informal, idiomatic) To seem at least vaguely familiar. / (informal, idiomatic) To spark a previously forgotten memory. / Used other than figuratively or idiomatically: see ring, a, bell.
（ present singular third-person ）
（ participle present ）
（ past ）
（ participle past ）
piston ring
A ring or seal that fits around a piston, sealing between the piston and the bore in which it slides.
circus ring
A circular arena in a circus, where the acts are performed.
ring of steel
(Britain) A form of civil protection (using closed-circuit television, control zones and restricted access) that effectively seals off city centres and financial districts; used in Northern Ireland and the City.
star ring
a network topology consisting of a physical star and a logical ring.
ring topology
(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.
token ring
(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.
