invisible ink

English

Etymology

invisible + ink

Noun

invisible ink (countable and uncountable, plural invisible inks)

1. An ink, invisible on application or soon thereafter, that can later be rendered visible by some process, such as exposing it to heat.

   Synonym: (dated) sympathetic ink

2. An ink used in pranks that is visible at first but soon disappears.

Translations

invisible ink that can later be rendered visible

• French: encre sympathique f
• German: Geheimtinte (de) f
• Polish: atrament sympatyczny (pl) m
• Romanian: cerneală simpatică (ro) f

ink used in pranks that soon disappears

• German: Scherztinte f