English Dictionary

redness

noun

(uncountable) The state or quality or characteristic of being red. / (countable, uncountable) A red discoloration.

The redness of her cheeks indicated that she was embarrassed.

意味（1）

(uncountable) The state or quality or characteristic of being red.

especially being red in color.

意味（2）

(countable, uncountable) A red discoloration.

Redness and swelling are associated with certain superficial infections.