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单词 parallel
释义 par·al·lel
I. \ˈparəˌlel also ˈper- or -rələl sometimes ˌ ̷ ̷ ̷ ̷ˈlel\ adjective
Etymology: Latin parallelus, from Greek parallēlos, from para beside + allēlōn of one another, from allos … allos one … the other — more at para-, else
1. : extending in the same direction and everywhere equidistant : forming a line in the same direction but not meeting
 < half a dozen parallel scars … ran from his forehead into the thickness of his hair — Eric Linklater >
 < parallel rows of tall poplars — American Guide Series: Washington >
 < the ships steam on parallel courses as close together as feasible — W.D.Leggett >
 < a long, low house running parallel with the road — G.K.Chesterton >
 < a line parallel to the edge of a paper >
2.
 a. : not meeting however far extended — used of lines in the same plane, of planes, or of a line and a plane
 b. : everywhere equally distant
  < concentric circles are parallel >
  < concentric spheres are parallel >
  < involutes of the same space curve are parallel >
3.
 a. : having parallel sides
  < a parallel file >
  < a parallel gutter >
  < a parallel reamer >
 b. : being or relating to an electrical circuit having a number of conductors in parallel
4.
 a. : marked by likeness or correspondence especially in time, direction, course, tendency, or development : similar, analogous, or interdependent in line followed : tending toward the same point or result
  < parallel strikes on the railroads, in the gas and electricity services — Percy Winner >
  < the standing committee systems in the two Houses are reasonably parallel — Harold Zink >
 b. : set side by side : capable of being matched : companion : readily compared or contrasted
  < the marriage rate turned upward … the birth rate entered upon a parallel climb — Oscar Handlin >
  < all sorts of pranks, parallel to the serious exploits performed by the heroes — R.A.Hall b. 1911 >
 c.
  (1) : having identical syntactic elements in corresponding positions
  (2) : identical in construction to a syntactic element in a corresponding position
 d. : keeping at the same distance apart in musical pitch : having consecutive motion
  < parallel voice parts >
  < parallel fifths >
  — compare consecutive intervals
5. : of or in accordance with philosophical parallelism
Synonyms: see like
II. noun
(-s)
1.
 a. : a parallel line, curve, or surface
 b.
  (1) : one of the imaginary circles on the surface of the earth paralleling the equator and marking the latitude
  (2) : the corresponding line on a globe or map
 c. : one of a series of long trenches that is approximately parallel to the face of fortification works attacked and that is constructed by a besieging force as a cover for troops
 d. : a character ‖ used in printing as the fifth in series of the reference marks — often used in plural
2.
 a. : something equal or similar in all essential details : counterpart
  < progress that is without parallel in the history of mankind — Current Biography >
  < the situation of modern man … has no parallel in the past — Rudolf Allers >
  < conductor of such genius that he has no exact parallel in reality — Marcia Davenport >
  < implements from near the end of the old Stone Age find parallels among those of the Eskimo — A.L.Kroeber >
 b. : agreement in many or all essential details : resemblance, similarity, analogue
  < there are parallels in Grettis Saga … to encounters like this — W.P.Ker >
  < pre-Columbian cultural parallels found in the two hemispheres — R.W.Murray >
3. : a comparison to show resemblance : a tracing of similarity
 < many interesting parallels are drawn with the historical plays of Shakespeare — Times Literary Supplement >
4.
 a. : parallel position or state of being physically parallel : parallelism
  < deviation of the two visual lines from parallel — H.G.Armstrong >
 b. : an arrangement of electrical devices in a circuit in which the same potential difference is applied to two or more resistances with each resistance on a parallel branch of the circuit
  < several generators operated in parallel >
  — called also multiple; contrasted with series
5.
 a. : parallel rule
 b. : a block or strip of metal made with two parallel sides and used especially in machine-shop work (as for a gage block or for setting up work)
6. : a raised platform that is parallel with the floor, that has a folding base, and that is used especially for lights or cameras (as in the theater or in a television studio); also : the folding base
Synonyms: see comparison
III. verb
(-ed/-ing/-s)
transitive verb
1. : to set up as closely analogous or agreeing in essential qualities or characteristics : compare
 < he parallels the jollity of Christmas at Dingley Dell with the picture of country life in Attica — Lucien Price >
2.
 a. : to show something equal or parallel to : match
  < parallel that stage of national culture — Deems Taylor >
  < disablement behavior amongst birds may be paralleled in human life — E.A.Armstrong >
  < with a precipitancy only to be paralleled by her exit from this mortal scene — T.L.Peacock >
  < state of affairs is partially paralleled in contemporary medicine — A.L.Kroeber >
  < long head hair in some humans is paralleled by that of Angora cats — Weston LaBarre >
 b. : to be or form a parallel to : correspond to
  < a piece of fiction paralleling a historical incident >
  < paralleling this change in artistic practice is a change in the concurrent critical apologia — Bernard Smith >
  < program which roughly paralleled the private school — J.B.Conant >
  < the career of the principal character parallels the actual life story — Bennett Cerf >
3. obsolete : to produce or adduce as a parallel
 < my young remembrance cannot parallel a fellow to it — Shakespeare >
4. : to place so as to be parallel to or to conform in direction with something
 < machines comb, parallel, and blend the fibers — Story of Twine in Agriculture >
 < three rifles were paralleled on pegs — Stephen Crane >
5. : to extend, run, or move in a direction parallel to : correspond to or match in direction
 < an airstrip paralleling the highway >
 < the route parallels the river >
intransitive verb
: to be parallel
 < long and narrow farms, crowded by paralleling ridges — American Guide Series: Pennsylvania >
IV. adverb
: in a parallel manner — often used with with or to
V. adjective
1. : arranged in parallel
 < a parallel processor >
2. : relating to or being a connection in a computer system in which the bits of a byte are transmitted over separate channels at the same time — compare serial 1 herein
VI. noun
: an arrangement or state that permits several operations or tasks to be performed simultaneously rather than consecutively
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更新时间:2025/3/12 21:18:09