Definitions for: Lifeblood

[n] an essential or life-giving force; "water is the lifeblood of India"
[n] the blood considered as the seat of vitality

Webster (1913) Definition: Life"blood` (l[imac]f"bl[u^]d`), n.
1. The blood necessary to life; vital blood. --Dryden.

2. Fig.: That which gives strength and energy.

Money [is] the lifeblood of the nation. --Swift.

See Also: blood, force