タンニンたんにんFreq.FrequencyTop 50,000Meanings1nountanninbiochemistryBiochemistry term for a class of astringent polyphenolic compounds found in plants, often used in leather tanning and present in foods like tea and wine.赤あかワインにはタンニンが多おおく含ふくまれている。Red wine contains a lot of tannin.
