Enter a clue or pattern or both:
The Clue
Nutritional need (7 letter answer)
The Answer
PROTEIN
Tags
Notes
The answer PROTEIN is rarely seen, appearing only about once every 1800 puzzles.
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Energy-building substance
Definition
PROTEIN as a noun:
1. any of a large group of nitrogenous organic compounds that are essential constituents of living cells; consist of polymers of amino acids; essential in the diet of animals for growth and for repair of tissues; can be obtained from meat and eggs and milk and legumes; "a diet high in protein"