Word Meanings - VALVE - Book Publishers vocabulary database

One or more membranous partitions, flaps, or folds, which permit the passage of the contents of a vessel or cavity in one direction, but stop or retard the flow in the opposite direction; as, the ileocolic, mitral, and semilunar valves. One of the

Additional info about word: VALVE

One or more membranous partitions, flaps, or folds, which permit the passage of the contents of a vessel or cavity in one direction, but stop or retard the flow in the opposite direction; as, the ileocolic, mitral, and semilunar valves. One of the pieces into which a capsule naturally separates when it bursts. One of the two similar portions of the shell of a diatom. A small portion of certain anthers, which opens like a trapdoor to allow the pollen to escape, as in the barberry. (more info) 1. A door; especially, one of a pair of folding doors, or one of the leaves of such a door. Swift through the valves the visionary fair Repassed. Pope. Heavily closed, . . . the valves of the barn doors. Longfellow. 2. A lid, plug, or cover, applied to an aperture so that by its movement, as by swinging, lifting and falling, sliding, turning, or the like, it will open or close the aperture to permit or prevent passage, as of a fluid. Note: A valve may act automatically so as to be opened by the effort of a fluid to pass in one direction, and closed by the effort to pass in the other direction, as a clack valve; or it may be opened or closed by hand or by mechanism, as a screw valve, or a slide valve.

Related words: (words related to VALVE)

• SEMILUNAR
  Shaped like a half moon. Semilunar bone , a bone of the carpus; the lunar. See Lunar, n. -- Semilunar, or Sigmoid, valves , the valves at the beginning of the aorta and of the pulmonary artery which prevent the blood from flowing back into the
• PERMIT
  1. To consent to; to allow or suffer to be done; to tolerate; to put up with. What things God doth neither command nor forbid . . . he permitteth with approbation either to be done or left undone. Hooker. 2. To grant express license or liberty
• OPPOSITE
  1. One who opposes; an opponent; an antagonist. The opposites of this day's strife. Shak. 2. That which is opposed or contrary; as, sweetness and its opposite. The virtuous man meets with more opposites and opponents than any other. Landor.
• PERMITTER
  One who permits. A permitter, or not a hinderer, of sin. J. Edwards.
• WHICHEVER; WHICHSOEVER
  Whether one or another; whether one or the other; which; that one which; as, whichever road you take, it will lead you to town.
• PERMITTEE
  One to whom a permission or permit is given.
• PASSAGEWAY
  A way for passage; a hall. See Passage, 5.
• WHICH
  the root of hwa who + lic body; hence properly, of what sort or kind; akin to OS. hwilik which, OFries. hwelik, D. welk, G. welch, OHG. welih, hwelih, Icel. hvilikr, Dan. & Sw. hvilken, Goth. hwileiks, 1. Of what sort or kind; what; what a; who.
• RETARDATION
  The keeping back of an approaching consonant chord by prolonging one or more tones of a previous chord into the intermediate chord which follows; -- differing from suspension by resolving upwards instead of downwards. 4. The extent to which anything
• VESSELFUL
  As much as a vessel will hold; enough to fill a vessel.
• ILEOCOLIC
  Pertaining to the ileum and colon; as, the ileocolic, or ileocæcal, valve, a valve where the ileum opens into the large intestine.
• PERMITTANCE
  The act of permitting; allowance; permission; leave. Milton.
• PASSAGE
  1. The act of passing; transit from one place to another; movement from point to point; a going by, over, across, or through; as, the passage of a man or a carriage; the passage of a ship or a bird; the passage of light; the passage of
• MITRAL
  Pertaining to a miter; resembling a miter; as, the mitral valve between the left auricle and left ventricle of the heart.
• MEMBRANOUS
  Membranaceous. Membranous croup , true croup. See Croup. (more info) 1. Pertaining to, consisting of, or resembling, membrane; as, a membranous covering or lining.
• SEMILUNARY
  Semilunar.
• DIRECTION
  The pointing of a piece with reference to an imaginary vertical axis; -- distinguished from elevation. The direction is given when the plane of sight passes through the object. Wilhelm. Syn. -- Administration; guidance; management; superintendence;
• OPPOSITENESS
  The quality or state of being opposite.
• RETARDATIVE
  Tending, or serving, to retard.
• CONTENTS
  See N
• AIR VESSEL
  A vessel, cell, duct, or tube containing or conducting air; as the air vessels of insects, birds, plants, etc.; the air vessel of a pump, engine, etc. For the latter, see Air chamber. The air vessels of insects are called tracheæ, of plants spiral
• DEWAR VESSEL
  A double-walled glass vessel for holding liquid air, etc., having the space between the walls exhausted so as to prevent conduction of heat, and sometimes having the glass silvered to prevent absorption of radiant heat; -- called also, according
• MISDIRECTION
  An error of a judge in charging the jury on a matter of law. Mozley & W. (more info) 1. The act of directing wrongly, or the state of being so directed.
• INDIRECTION
  Oblique course or means; dishonest practices; indirectness. "By indirections find directions out." Shak.
• INTERMEMBRANOUS
  Within or beneath a membrane; as, intermembranous ossification.