As you may have noticed, above you will find words for "The Japanese custom of blackening the teeth with a solution of iron filings and vinegar, especially popular between the Heian and Edo periods, from the 10th century until the late 19th century.". Hover the mouse over the word you'd like to know more about to view its definition. Click to find a better fitting word. Finally, thanks to ChatGPT, the overall results have been greatly improved.