An abstract is a brief summary of a longer piece of writing, such as a research paper, article, or book.
Here's how the concept of "lengthy" might relate to abstracts:
* A lengthy abstract: This is usually not ideal. Abstracts are meant to be concise, giving readers a quick overview of the main points.
* A lengthy piece of writing: This is where an abstract comes in. An abstract is used to summarize the content of a lengthy piece of writing.
So, while "lengthy" can be used to describe the original work, it's not typically used to describe the abstract itself.