lifeblood
1 ENTRIES FOUND:
Britannica Dictionary definition of LIFEBLOOD
[noncount]
1
:
the most important part of something
:
the part of something that provides its strength and energy
-
The town's lifeblood has always been its fishing industry.
-
The neighborhoods are the lifeblood of this city.
2
literary
:
a person's blood
-
the lifeblood that flows through his veins
