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单词 fulcrum
释义

WordReference Random House Learner's Dictionary of American English © 2024
ful•crum /ˈfʊlkrəm, ˈfʌl-/USA pronunciation   n. [countable], pl. -crums, -cra /-krə/.USA pronunciation  
  1. Mechanicsthe support, or point of rest, on which a lever turns in moving a body.

WordReference Random House Unabridged Dictionary of American English © 2024
ful•crum  (fŏŏl′krəm, ful′-),USA pronunciation n., pl. -crums, -cra (-krə),USA pronunciation  v. 

    n. 
    1. Mechanicsthe support, or point of rest, on which a lever turns in moving a body.
    2. any prop or support.
    3. Zoologyany of various structures in an animal serving as a hinge or support.

    v.t. 
    1. Mechanicsto fit with a fulcrum;
      put a fulcrum on.
    • Latin: back-support of a couch, apparently for fulctrum, equivalent. to fulc(īre) to hold up, support + -trum noun, nominal suffix of instrument
    • 1665–75

    Collins Concise English Dictionary © HarperCollins Publishers::
    fulcrum /ˈfʊlkrəm ˈfʌl-/ n ( pl -crums, -cra / -krə/)
    1. the pivot about which a lever turns
    2. something that supports or sustains; prop
    Etymology: 17th Century: from Latin: foot of a couch, bedpost, from fulcire to prop up
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    更新时间：2025/2/23 16:31:09