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  Tide \Tide\, n. [AS. t[=i]d time; akin to OS. & OFries. t[=i]d,
     D. tijd, G. zeit, OHG. z[=i]t, Icel. t[=i]?, Sw. & Dan. tid,
     and probably to Skr. aditi unlimited, endless, where a- is a
     negative prefix. [root]58. Cf. Tidings, Tidy, Till,
     prep., Time.]
     1. Time; period; season. [Obsoles.] ``This lusty summer's
        tide.'' --Chaucer.
        [1913 Webster]
  
              And rest their weary limbs a tide.    --Spenser.
        [1913 Webster]
  
              Which, at the appointed tide,
              Each one did make his bride.          --Spenser.
        [1913 Webster]
  
              At the tide of Christ his birth.      --Fuller.
        [1913 Webster]
  
     2. The alternate rising and falling of the waters of the
        ocean, and of bays, rivers, etc., connected therewith. The
        tide ebbs and flows twice in each lunar day, or the space
        of a little more than twenty-four hours. It is occasioned
        by the attraction of the sun and moon (the influence of
        the latter being three times that of the former), acting
        unequally on the waters in different parts of the earth,
        thus disturbing their equilibrium. A high tide upon one
        side of the earth is accompanied by a high tide upon the
        opposite side. Hence, when the sun and moon are in
        conjunction or opposition, as at new moon and full moon,
        their action is such as to produce a greater than the
        usual tide, called the spring tide, as represented in
        the cut. When the moon is in the first or third quarter,
        the sun's attraction in part counteracts the effect of the
        moon's attraction, thus producing under the moon a smaller
        tide than usual, called the neap tide.
        [1913 Webster]
  
     Note: The flow or rising of the water is called flood tide,
           and the reflux, ebb tide.
           [1913 Webster]
  
     3. A stream; current; flood; as, a tide of blood. ``Let in
        the tide of knaves once more; my cook and I'll provide.''
        --Shak.
        [1913 Webster]
  
     4. Tendency or direction of causes, influences, or events;
        course; current.
        [1913 Webster]
  
              There is a tide in the affairs of men,
              Which, taken at the flood, leads on to fortune.
                                                    --Shak.
        [1913 Webster]
  
     5. Violent confluence. [Obs.] --Bacon.
        [1913 Webster]
  
     6. (Mining) The period of twelve hours.
        [1913 Webster]
  
     Atmospheric tides, tidal movements of the atmosphere
        similar to those of the ocean, and produced in the same
        manner by the attractive forces of the sun and moon.
  
     Inferior tide. See under Inferior, a.
  
     To work double tides. See under Work, v. t.
  
     Tide day, the interval between the occurrences of two
        consecutive maxima of the resultant wave at the same
        place. Its length varies as the components of sun and moon
        waves approach to, or recede from, one another. A
        retardation from this cause is called the lagging of the
        tide, while the acceleration of the recurrence of high
        water is termed the priming of the tide. See Lag of the
        tide, under 2d Lag.
  
     Tide dial, a dial to exhibit the state of the tides at any
        time.
  
     Tide gate.
        (a) An opening through which water may flow freely when
            the tide sets in one direction, but which closes
            automatically and prevents the water from flowing in
            the other direction.
        (b) (Naut.) A place where the tide runs with great
            velocity, as through a gate.
  
     Tide gauge, a gauge for showing the height of the tide;
        especially, a contrivance for registering the state of the
        tide continuously at every instant of time. --Brande & C.
  
     Tide lock, a lock situated between an inclosed basin, or a
        canal, and the tide water of a harbor or river, when they
        are on different levels, so that craft can pass either way
        at all times of the tide; -- called also guard lock.
  
     Tide mill. (a) A mill operated by the tidal currents.
        (b) A mill for clearing lands from tide water.
  
     Tide rip, a body of water made rough by the conflict of
        opposing tides or currents.
  
     Tide table, a table giving the time of the rise and fall of
        the tide at any place.
  
     Tide water, water affected by the flow of the tide; hence,
        broadly, the seaboard.
  
     Tide wave, or Tidal wave, the swell of water as the tide
        moves. That of the ocean is called primitive; that of bays
        or channels derivative. See also tidal wave in the
        vocabulary. --Whewell.
  
     Tide wheel, a water wheel so constructed as to be moved by
        the ebb or flow of the tide.
        [1913 Webster]

  Tide \Tide\, n. [AS. t[=i]d time; akin to OS. & OFries. t[=i]d,
     D. tijd, G. zeit, OHG. z[=i]t, Icel. t[=i]?, Sw. & Dan. tid,
     and probably to Skr. aditi unlimited, endless, where a- is a
     negative prefix. [root]58. Cf. Tidings, Tidy, Till,
     prep., Time.]
     1. Time; period; season. [Obsoles.] ``This lusty summer's
        tide.'' --Chaucer.
  
              And rest their weary limbs a tide.    --Spenser.
  
              Which, at the appointed tide, Each one did make his
              bride.                                --Spenser.
  
              At the tide of Christ his birth.      --Fuller.
  
     2. The alternate rising and falling of the waters of the
        ocean, and of bays, rivers, etc., connected therewith. The
        tide ebbs and flows twice in each lunar day, or the space
        of a little more than twenty-four hours. It is occasioned
        by the attraction of the sun and moon (the influence of
        the latter being three times that of the former), acting
        unequally on the waters in different parts of the earth,
        thus disturbing their equilibrium. A high tide upon one
        side of the earth is accompanied by a high tide upon the
        opposite side. Hence, when the sun and moon are in
        conjunction or opposition, as at new moon and full moon,
        their action is such as to produce a greater than the
        usual tide, called the spring tide, as represented in
        the cut. When the moon is in the first or third quarter,
        the sun's attraction in part counteracts the effect of the
        moon's attraction, thus producing under the moon a smaller
        tide than usual, called the neap tide.
  
     Note: The flow or rising of the water is called flood tide,
           and the reflux, ebb tide.
  
     3. A stream; current; flood; as, a tide of blood. ``Let in
        the tide of knaves once more; my cook and I'll provide.''
        --Shak.
  
     4. Tendency or direction of causes, influences, or events;
        course; current.
  
              There is a tide in the affairs of men, Which, taken
              at the flood, leads on to fortune.    --Shak.
  
     5. Violent confluence. [Obs.] --Bacon.
  
     6. (Mining) The period of twelve hours.
  
     Atmospheric tides, tidal movements of the atmosphere
        similar to those of the ocean, and produced in the same
        manner by the attractive forces of the sun and moon.
  
     Inferior tide. See under Inferior, a.
  
     To work double tides. See under Work, v. t.
  
     Tide day, the interval between the occurrences of two
        consecutive maxima of the resultant wave at the same
        place. Its length varies as the components of sun and moon
        waves approach to, or recede from, one another. A
        retardation from this cause is called the lagging of the
        tide, while the acceleration of the recurrence of high
        water is termed the priming of the tide. See Lag of the
        tide, under 2d Lag.
  
     Tide dial, a dial to exhibit the state of the tides at any
        time.
  
     Tide gate.
        (a) An opening through which water may flow freely when
            the tide sets in one direction, but which closes
            automatically and prevents the water from flowing in
            the other direction.
        (b) (Naut.) A place where the tide runs with great
            velocity, as through a gate.
  
     Tide gauge, a gauge for showing the height of the tide;
        especially, a contrivance for registering the state of the
        tide continuously at every instant of time. --Brande & C.
  
     Tide lock, a lock situated between an inclosed basin, or a
        canal, and the tide water of a harbor or river, when they
        are on different levels, so that craft can pass either way
        at all times of the tide; -- called also guard lock.
  
     Tide mill. (a) A mill operated by the tidal currents.
        (b) A mill for clearing lands from tide water.
  
     Tide rip, a body of water made rough by the conflict of
        opposing tides or currents.
  
     Tide table, a table giving the time of the rise and fall of
        the tide at any place.
  
     Tide water, water affected by the flow of the tide; hence,
        broadly, the seaboard.
  
     Tide wave, or Tidal wave, the swell of water as the tide
        moves. That of the ocean is called primitive; that of bays
        or channels derivative. --Whewell.
  
     Tide wheel, a water wheel so constructed as to be moved by
        the ebb or flow of the tide.

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