sympathetic ink

American  

[sim-puh-thet-ik ingk] / ˌsɪm pəˈθɛt ɪk ˈɪŋk /

noun

1. invisible ink.

---

sympathetic ink British  

noun

1. another term for invisible ink

---

Etymology

Origin of sympathetic ink

First recorded in 1715–25

Example Sentences

The old histories emerge into light, like the writing in sympathetic ink on the secret despatches of King James.

From Pickle the Spy; Or, the Incognito of Prince Charles by Lang, Andrew

The truth of Christianity," he said, "was all written in us already in sympathetic ink.

From Thomas Carlyle by Nichol, John

The records of memory are like those pages on which you write with sympathetic ink, which disappears when dry, and seems to leave the page blank.

From Expositions of Holy Scripture by Maclaren, Alexander

Porter, and contained directions for his cruise, written in sympathetic ink.

From The Naval History of the United States Volume 1 by Abbot, Willis J. (Willis John)

Try every piece of blank paper for sympathetic ink.

From The Boy Scouts on a Submarine by Blaine, Captain John