Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun Blood regarded as essential for life.
  • noun An indispensable or vital part.

from The Century Dictionary.

  • noun The blood necessary to life; vital blood.
  • noun That which is essential to the existence or strength of something; that which constitutes or gives strength and energy. Also life's-blood, or, preferably, life's blood.
  • noun In pathology, the more or less constant spasmodic quivering of the eyelid or lip: also called life's-blood, live-blood, and cillo.
  • Necessary as blood to life; essential.

from the GNU version of the Collaborative International Dictionary of English.

  • noun The blood necessary to life; vital blood.
  • noun Fig.: That which gives strength and energy.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun Blood which is needed for continued life; blood regarded as the seat of life.
  • noun figuratively That which is required for continued existence or function.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun the blood considered as the seat of vitality
  • noun an essential or life-giving force

Etymologies

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Examples

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