gallnut

Noun

A gall on a tree, caused by insects, that resembles a nut.

Japanese Meaning

虫が誘発して樹木に発生する、ナッツに似た形状の腫瘤（虫瘿）

What is this buttons?

The artisan collected a shiny gallnut from the oak and used it to make a deep brown ink.

Google Translation / DeepL Translation

職人はオークの木から光沢のある虫えい（昆虫が原因で木にでき、ナッツのように見えるこぶ）を集め、それを使って濃い茶色のインクを作った。

Details

Sense（1）

A gall on a tree, caused by insects, that resembles a nut.

There was the smell of evening in the air, the smell of the fields in the country where they digged up turnips to peel them and eat them when they went out for a walk to Major Barton's, the smell there was in the little wood beyond the pavilion where the gallnuts were.