Clack valve
Clack Clack, n. [Cf. F. claque a slap or smack, MHG. klac crack, W. clec crack, gossip. See {Clack}, v. t.] 1. A sharp, abrupt noise, or succession of noises, made by striking an object. [1913 Webster]

2. Anything that causes a clacking noise, as the clapper of a mill, or a clack valve. [1913 Webster]

3. Continual or importunate talk; prattle; prating. [1913 Webster]

Whose chief intent is to vaunt his spiritual clack. --South. [1913 Webster]

{Clack box} (Mach.), the box or chamber in which a clack valve works.

{Clack dish}, a dish with a movable lid, formerly carried by beggars, who clacked the lid to attract notice. --Shak. [1913 Webster]

{Clack door} (Mining), removable cover of the opening through which access is had to a pump valve.

{Clack valve} (Mach.), a valve; esp. one hinged at one edge, which, when raised from its seat, falls with a clacking sound. [1913 Webster]


The Collaborative International Dictionary of English. 2000.

Look at other dictionaries:

  • clack valve — clack′ valve n. mac a valve having a hinged flap permitting flow only in the direction in which the flap opens • Etymology: 1855–60 …   From formal English to slang

  • clack valve — n. a valve, often hinged at one side, which closes with a clacking sound and allows fluid to flow in only one direction …   English World dictionary

  • clack valve — noun a simple valve with a hinge on one side; allows fluid to flow in only one direction • Syn: ↑clack, ↑clapper valve • Hypernyms: ↑valve * * * noun : a valve usually hinged at one edge that permits flow of fluid in one direction only and that… …   Useful english dictionary

  • clack valve — a valve having a hinged flap permitting flow only in the direction in which the flap opens. Also called flap valve. [1855 60] * * * …   Universalium

  • Clack — Clack, n. [Cf. F. claque a slap or smack, MHG. klac crack, W. clec crack, gossip. See {Clack}, v. t.] 1. A sharp, abrupt noise, or succession of noises, made by striking an object. [1913 Webster] 2. Anything that causes a clacking noise, as the… …   The Collaborative International Dictionary of English

  • Clack box — Clack Clack, n. [Cf. F. claque a slap or smack, MHG. klac crack, W. clec crack, gossip. See {Clack}, v. t.] 1. A sharp, abrupt noise, or succession of noises, made by striking an object. [1913 Webster] 2. Anything that causes a clacking noise, as …   The Collaborative International Dictionary of English

  • Clack dish — Clack Clack, n. [Cf. F. claque a slap or smack, MHG. klac crack, W. clec crack, gossip. See {Clack}, v. t.] 1. A sharp, abrupt noise, or succession of noises, made by striking an object. [1913 Webster] 2. Anything that causes a clacking noise, as …   The Collaborative International Dictionary of English

  • Clack door — Clack Clack, n. [Cf. F. claque a slap or smack, MHG. klac crack, W. clec crack, gossip. See {Clack}, v. t.] 1. A sharp, abrupt noise, or succession of noises, made by striking an object. [1913 Webster] 2. Anything that causes a clacking noise, as …   The Collaborative International Dictionary of English

  • Valve — Valve, n. [L. valva the leaf, fold, or valve of a door: cf. F. valve.] [1913 Webster] 1. A door; especially, one of a pair of folding doors, or one of the leaves of such a door. [1913 Webster] Swift through the valves the visionary fair Repassed …   The Collaborative International Dictionary of English

  • valve box — Valve Valve, n. [L. valva the leaf, fold, or valve of a door: cf. F. valve.] [1913 Webster] 1. A door; especially, one of a pair of folding doors, or one of the leaves of such a door. [1913 Webster] Swift through the valves the visionary fair… …   The Collaborative International Dictionary of English

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