单词 | fulcrum |
释义 | Word Frequency fulcrum(ˈfʊlkrəm, ˈfʌl-) nounWord forms: plural -crums or -cra (-krə) 1. the pivot about which a lever turns 2. something that supports or sustains; prop 3. a spinelike scale occurring in rows along the anterior edge of the fins in primitive bony fishes such as the sturgeon Word origin C17: from Latin: foot of a couch, bedpost, from fulcire to prop up |
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