Blood that is needed for continued life; blood regarded as the seat of life.
That which is required for continued existence or function.
To scrape the zest from a fruit.
To make more zesty.
The outer skin of a citrus fruit, used as a flavouring or garnish.
General vibrance of flavour.
Enthusiasm; keen enjoyment; relish; gusto.
The woody, thick skin enclosing the kernel of a walnut.