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1

tide

play
noun \ˈtīd\

Simple Definition of tide

  • : the regular upward and downward movement of the level of the ocean that is caused by the pull of the Sun and the Moon on the Earth

  • : the flow of the ocean's water as the tide rises or falls

  • : the way in which something is changing or developing

Full Definition of tide

  1. 1a obsolete :  a space of time :  periodb :  a fit or opportune time :  opportunityc :  an ecclesiastical anniversary or festival; also :  its season —usually used in combination <Eastertide>

  2. 2a (1) :  the alternate rising and falling of the surface of the ocean and of water bodies (as gulfs and bays) connected with the ocean that occurs usually twice a day and is the result of differing gravitational forces exerted at different parts of the earth by another body (as the moon or sun) (2) :  a less marked rising and falling of an inland body of water (3) :  a periodic movement in the earth's crust caused by the same forces that produce ocean tides (4) :  a periodic distortion on one celestial body caused by the gravitational attraction of another (5) :  one of the periodic movements of the atmosphere resembling those of the ocean and produced by gravitation or diurnal temperature changesb :  flood tide 1

  3. 3a :  something that fluctuates like the tides of the sea <the tide of public opinion>b :  a large and increasing quantity or volume <a tide of opportunists> <a swelling tide of criticism>

  4. 4a :  a flowing stream :  currentb :  the waters of the oceanc :  the overflow of a flooding stream

tide·less play \-ləs\ adjective

Examples of tide

  1. a chart of the tides

  2. The boat got swept away in the tide.



Origin of tide

Middle English, time, from Old English tīd; akin to Old High German zīt time and perhaps to Greek daiesthai to divide


First Known Use: before 12th century

Other Oceanography Terms


2

tide

verb

Definition of tide

tid·edtid·ing

  1. intransitive verb
  2. :  to flow as or in a tide :  surge

  3. transitive verb
  4. :  to cause to float with or as if with the tide



1593

First Known Use of tide

1593


3

tide

intransitive verb

Definition of tide

tid·edtid·ing

archaic

  1. :  betide, befall



Origin of tide

Middle English, from Old English tīdan; akin to Middle Dutch tiden to go, come, Old English tīd time


First Known Use: before 12th century


Medical Dictionary

tide

play
noun \ˈtīd\

Medical Definition of tide

  1. :  a temporary increase or decrease in a specified substance or quality in the body or one of its systems <a postprandial alkaline tide, the typical rise in urinary pH associated with gastric acid secretion—E. J. Jacobson & Gerhard Fuchs>






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