lacuna
gap / void / missing part / cavity
Noun
pl: lacunae
This term describes a void or a missing piece, often carrying a sense of loss or incompleteness. In academic and legal contexts, it refers to a specific absence of information or a loophole in a set of rules that creates uncertainty. In biological contexts, the word refers to physical cavities. The plural form is irregular, typically using the Latinate lacunae, though lacunas is occasionally accepted in less formal scientific writing.
Meanings
Noun
An unfilled space or a gap in a book, manuscript, or other piece of writing.
"The historian noted a significant lacuna in the ancient text where several pages had been torn out."