Nearby words
inviscid, invisible, invisible balance, invisible glass, invisible hand, invisible ink, invisible man, invisible man, the, invisible shadow, invitation, invitational
Origin of invisible ink
First recorded in 1675–85
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for invisible ink
invisible ink
noun
a liquid used for writing that does not become visible until it has been treated with chemicals, heat, ultraviolet light, etc
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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