[ foo l-kruh m, fuhl- ]
/ ˈfʊl krəm, ˈfʌl- /

noun, plural ful·crums, ful·cra [foo l-kruh, fuhl-] /ˈfʊl krə, ˈfʌl-/.

the support, or point of rest, on which a lever turns in moving a body.
any prop or support.
Zoology. any of various structures in an animal serving as a hinge or support.

verb (used with object)

to fit with a fulcrum; put a fulcrum on.

Nearby words

  1. fulani empire,
  2. fulbright,
  3. fulbright act,
  4. fulbright scholarships,
  5. fulbright, james william,
  6. fulfil,
  7. fulfill,
  8. fulfillment,
  9. fulgent,
  10. fulgently

Origin of fulcrum

1665–75; < Latin: back-support of a couch, apparently for fulctrum, equivalent to fulc(īre) to hold up, support + -trum noun suffix of instrument

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for fulcrum

British Dictionary definitions for fulcrum


/ (ˈfʊlkrəm, ˈfʌl-) /

noun plural -crums or -cra (-krə)

the pivot about which a lever turns
something that supports or sustains; prop
a spinelike scale occurring in rows along the anterior edge of the fins in primitive bony fishes such as the sturgeon

Word Origin for fulcrum

C17: from Latin: foot of a couch, bedpost, from fulcire to prop up

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for fulcrum



1670s, "a prop, a support" (on which a lever turns), from Latin fulcrum "bedpost," from fulcire "to prop up, support" (see balk).

Online Etymology Dictionary, © 2010 Douglas Harper

Medicine definitions for fulcrum


[ fulkrəm, fŭl- ]

n. pl. ful•crums

The point or support on which a lever pivots.
An anatomical structure that acts as a hinge or point of support.

The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Science definitions for fulcrum


[ fulkrəm ]

The point or support on which a lever turns. The position of the fulcrum, relative to the positions of the load and effort, determines the type of lever.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Culture definitions for fulcrum


[ (fool-kruhm, ful-kruhm) ]

The point on which a lever is balanced when a force is exerted.

The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.