sympathetic ink

American  

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

noun

1. invisible ink.

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sympathetic ink British  

noun

1. another term for invisible ink

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Etymology

Origin of sympathetic ink

First recorded in 1715–25

Example Sentences

See Examples For:

sympathetic ink

So far as Massachusetts was concerned, the Declaration of Independence was interlined upon it in sympathetic ink.

From The Atlantic Monthly, Volume 03, No. 18, April, 1859 by Various

Might there not be something written in sympathetic ink?

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

The first page looked as if it had been written over with some sort of sympathetic ink; but not a word could be deciphered.

From Saxe Holm's Stories by Jackson, Helen Hunt

We have heard of the use of sympathetic ink in this country.

From The Better Germany in War Time Being some Facts towards Fellowship by Picton, Harold W. (Harold Williams)

"Ah, sympathetic ink," exclaimed John; "well, we will see."

From Andreas Hofer by Mühlbach, L. (Luise)