Simple Definition of lacuna
: a gap or blank space in something : a missing part
Full Definition of lacuna
Examples of lacuna in a sentence
She found a lacuna in the historical record.
<attributes many of the nation's problems to a lacuna of leadership at the top>
Did You Know?
Exploring the etymology of lacuna involves taking a plunge into the pit - or maybe a leap into the "lacus" (that's the Latin word for "lake"). Latin speakers modified "lacus" into "lacuna," and used it to mean "pit," "cleft," or "pool." English speakers borrowed the term in the 17th century. Another English word that traces its origin to "lacuna" is "lagoon," which came to us by way of Italian and French.
Origin of lacuna
Latin, pool, pit, gap — more at lagoon
First Known Use: 1652
Medical Definition of lacuna
: a small cavity, pit, or discontinuity in an anatomical structure: asa: one of the follicles in the mucous membrane of the urethrab: one of the minute cavities in bone or cartilage occupied by the osteocytes
Seen and Heard
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