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valves - 3 dictionary results
Install a Shut Off Valve
 AdeeDo Plumbing Serves Southern CA Service In Minutes! 800-554-5858
 www.AdeeDo.com
Valves
 MSC Tools, Hardware & Industrial Supply. Shop The Big Book Online!
 MSCDirect.com
High Pressure Valves
 Five Different Styles of Standard & Custom Configurations to 66,000 PSI
 www.inpressure.com

valve

  [valv] ,noun, verb, valved, valv⋅ing.
Use valves in a Sentence
–noun
1. any device for halting or controlling the flow of a liquid, gas, or other material through a passage, pipe, inlet, outlet, etc.
2. a hinged lid or other movable part that closes or modifies the passage in such a device.
3. Anatomy. a membranous fold or other structure that controls the flow of a fluid, as one that permits blood to flow in one direction only.
4. (in musical wind instruments of the trumpet class) a device for changing the length of the air column to alter the pitch of a tone.
5. Zoology.
a. one of the two or more separable pieces composing certain shells.
b. either half of the silicified shell of a diatom.
6. Botany.
a. one of the segments into which a capsule dehisces.
b. a flap or lidlike part of certain anthers.
7. Electronics (chiefly British). vacuum tube (def. 1).
8. Archaic. one of the leaves of a double or folding door.
–verb (used with object)
9. to provide with a means of controlling the flow of liquid, gas, etc., by inserting a valve.
Origin:
1350–1400; ME < L valvae leaves of a door

Related forms:
valveless, adjective
valvelike, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
Cite This Source Link To valves
Install a Shut Off Valve
 AdeeDo Plumbing Serves Southern CA Service In Minutes! 800-554-5858
 www.AdeeDo.com
Valves
 MSC Tools, Hardware & Industrial Supply. Shop The Big Book Online!
 MSCDirect.com
valve   (vālv)   


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n.  
  1. Anatomy A membranous structure in a hollow organ or passage, as in an artery or vein, that folds or closes to prevent the return flow of the body fluid passing through it.
    1. Any of various devices that regulate the flow of gases, liquids, or loose materials through piping or through apertures by opening, closing, or obstructing ports or passageways.
    2. The movable control element of such a device.
    3. Music A device in a brass wind instrument that permits change in pitch by a rapid varying of the air column in a tube.
    4. One of the paired, hinged shells of certain mollusks and of brachiopods.
    5. One of the two silicified halves of the cell wall of a diatom.
    6. The entire, one-piece shell of a snail and certain other mollusks.
    7. One of the sections into which the wall of a seedpod or other dehiscent fruit splits.
    8. A lidlike covering of an anther.
  3. Biology
    1. One of the paired, hinged shells of certain mollusks and of brachiopods.
    2. One of the two silicified halves of the cell wall of a diatom.
    3. The entire, one-piece shell of a snail and certain other mollusks.
    4. One of the sections into which the wall of a seedpod or other dehiscent fruit splits.
    5. A lidlike covering of an anther.
  4. Botany
    1. One of the sections into which the wall of a seedpod or other dehiscent fruit splits.
    2. A lidlike covering of an anther.
  5. Chiefly British An electron tube or a vacuum tube.
  6. Archaic Either half of a double or folding door.
tr.v.   valved, valv·ing, valves
  1. To provide with a valve.
  2. To control by means of a valve.

[Middle English, leaf of a door, from Latin valva; see wel-2 in Indo-European roots.]
valve'less adj.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
Cite This Source
valve   (vālv)  Pronunciation Key 
    1. Any of various mechanical devices that control the flow of liquids, gases, or loose material through pipes or channels by blocking and uncovering openings.
    2. The movable part or element of such a device.
  2. Any of various structures that prevent the backward flow of a body fluid, such as blood or lymph. Valves in the heart, veins, and lymphatic vessels contain flaps (known as cusps) that close in response to pressure created by the backflow of fluid.
  3. One of the paired hinged shells of certain mollusks, such as clams and oysters.
  4. See electron tube.

The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source
Language Translation for : valves
Spanish: de guardia,
German: auf Abruf,
Japanese: 待機して
More Translations »
Search another word or see valves on Thesaurus | Reference
High Pressure Valves
 Five Different Styles of Standard & Custom Configurations to 66,000 PSI
 www.inpressure.com
Valves
 Shop Hydraulics at Northern Tool - Adapters, Cylinders, Pumps + More.
 NorthernTool.com/Hydraulics
High Pressure Ball Valves
 2 & 3-Way, 5000 to 20000 psi 3/16", 1/4", 3/8" and 1/2" orifice
 www.highpressure.com