Enamel, in the context of the clue "crown cover," refers to the outer covering of the tooth crown, which is the visible part of a tooth above the gum line. Enamel is the hard, protective layer that helps safeguard the underlying sensitive dentin and pulp of the tooth. It is known for its strength and durability.
Note: The provided meaning of the answer is for the latest New York Times crossword puzzle clue: Porcelain coating. Explanations are generated by AI and may be inaccurate.