Lacuna
Lacuna (plural lacunas or lacunae) may refer to:

Related to the meaning "gap"
Lacuna (manuscripts), a gap in a manuscript, inscription, text, painting, or musical work
Great Lacuna, a lacuna of eight leaves in the Codex Regius where there was heroic Old Norse poetry
Lacuna (music), an intentional, extended passage in a musical work during which no notes are played
Scientific lacuna, an area of science that has not been studied but has potential to be studied
Lacuna or accidental gap, in linguistics, a word that does not exist but which would be permitted by the rules of a language
Lacuna, in law, largely overlapping a non liquet ("it is not clear"), a gap (in the law)

In medicine
Lacuna (histology), a small space containing an osteocyte in bone, or chondrocyte in cartilage
Muscular lacuna, a lateral compartment of the thigh
Vascular lacuna, a medial compartment beneath the inguinal ligament
Lacuna magna, the largest of several recesses in the urethra

Other uses
Lacuna (comics), a fictional Marvel Comics character
Lacuna (film), a 2012 Chinese romantic comedy film
Lacuna (gastropod), a genus of sea snails in the family Littorinidae
Helcogramma lacuna (H. lacuna), a species of fish in the genus Helcogramma
Mallomonas lacuna (M. lacuna), a species of heterokont algae
Lacuna Island, Antarctica
Jessie Lacuna (born 1993), a Filipino swimmer
The Lacuna, a 2009 novel by Barbara Kingsolver
Lacuna, Inc., a fictional company in the 2004 film Eternal Sunshine of the Spotless Mind
Lacuna, the name of several lakes of Titan, the moon of Saturn

See also
Lacuna model, a tool for unlocking culture differences or missing "gaps" in text
Lacunar amnesia, loss of memory about one specific event
Lacunar stroke, in medicine, the most common type of stroke
Lacuna Coil, an Italian hard rock/metal band
Lacunary function, an analytic function in mathematics
Lacunarity, a mathematical measure of the extent that a pattern contains gaps
Lacunary polynomial, or sparse polynomial
Petrovsky lacuna, in mathematics
Laguna (disambiguation)