Wiktionary
correcting fluid
alt. An opaque fast-drying liquid used to cover a mistake written or typed on a piece of paper. n. An opaque fast-drying liquid used to cover a mistake written or typed on a piece of paper.
Usage examples of "correcting fluid".
The manufacturers of correcting fluid simply packed him off for a week somewhere with a copy of a later edition of his book and a stack of dried habra leaves to copy them out on to, making the odd deliberate mistake and correction on the way.
He wrote them on pages made of dried habra leaves, without the benefit of education or correcting fluid.
All the limbs didn't seem to help the creature's typing much, for every few seconds it made a mistake and went grumbling and fumbling over the top of its messy desk for a bottle of correcting fluid.