タンニン酸 | [たんにんさん, tanninsan] (n) tannic acid; tannin [Add to Longdo] |
tannin | (n) any of various complex phenolic substances of plant origin; used in tanning and in medicine, Syn. tannic acid |
タンニン酸 | [たんにんさん, tanninsan] (n) tannic acid; tannin [Add to Longdo] |