酸性 Traditional form: 酸性 Pinyin (reading): suānxìng Definitions: acidity Characters: 酸 - tart, sour; spoiled; acid 性 - sex, nature, character; suffix converting a verb to an adjective Traditional characters: 酸 - tart, sour; spoiled; acid 性 - sex, nature, character; suffix converting a verb to an adjective