noun
India ink; China ink; liquid ink
Refers to prepared liquid ink, especially for calligraphy and brush painting. Often synonymous with 墨汁 (ぼくじゅう), though 墨液 may be used in more technical or product contexts.
See also: 墨汁
書道の授業で墨液を使う。
We use liquid ink in calligraphy class.