lacuna
/ləˈkjuː.nə/
noun
- A small opening; a small pit or depression; a small blank space; a gap or vacancy; a hiatus.
- An absent part, especially in a book or other piece of writing, often referring to an ancient manuscript or similar.
- (microscopy) A space visible between cells, allowing free passage of light.
Wikipedia
en.wikipedia.org › wiki › Lacuna_(histology)
Lacuna (histology) - Wikipedia
May 23, 2025 - In histology, a lacuna is a small space, containing an osteocyte in bone, or chondrocyte in cartilage. The lacuna are situated between the lamellae, and consist of a number of oblong spaces. In an ordinary microscopic section, viewed by transmitted light, they appear as fusiform opaque spots.
small space containing an osteocyte in bone, or chondrocyte in cartilage
Factsheet
Lacuna Anatomical terminology
Lacuna Anatomical terminology
Cambridge Dictionary
dictionary.cambridge.org › us › dictionary › english › lacunae
LACUNAE | definition in the Cambridge English Dictionary
Small dark areas within the bone, around the vascular canals are lacunae, or spaces where the adult bone cells would have lived in the dinosaur.
Taylor & Francis
taylorandfrancis.com › knowledge › Engineering_and_technology › Biomedical_engineering › Lacunae
Lacunae – Knowledge and References - Taylor & Francis
Osteocyte lacunae are ellipsoidal-shaped holes within bone that contain osteocytes and extracellular fluid. Their diameters are between 10 and 20 microns. Osteocyte canaliculi are the small tunnels that connect lacunae to one another.
Videos
01:03
How To Say Lacunae - YouTube
02:43
Lacunae and canaliculi (Bone tissue) | In 3 MINUTES - YouTube
00:53
How to Pronounce Lacunae - YouTube
01:26
How to Pronounce Lacunae (correctly!) - YouTube
01:18
are present in spaces called lacunae.... - YouTube
Lacunae and canaliculi (Bone tissue) | In 3 MINUTES
Substack
boforbes.substack.com › p › lacunae-stepping-into-the-gap
Lacunae: Stepping into The Gap - Bodies of Knowledge
October 17, 2023 - In astronomy, lacunae are the name for several lakes of Titan, Saturn’s largest moon and the most Earthlike moon in our galaxy.
Collins Dictionary
collinsdictionary.com › us › dictionary › english › lacunae
LACUNAE definition in American English | Collins English Dictionary
4 senses: → See lacuna 1. a gap or space, esp in a book or manuscript 2. biology a cavity or depression, such as any of the.... Click for more definitions.
Biology Online
biologyonline.com › home › lacuna
Lacuna Definition and Examples - Biology Online Dictionary
June 16, 2022 - In botany, the term “lacuna” refers to the gap in the vascular tissue of the stem through which a leaf grows. This gap is known as the leaf gap or lacuna. The connecting portion of a leaf to the stem is known as a leaf trace; a leaf trace ...
Dermoscopedia
dermoscopedia.org › Lacunae
Lacunae - dermoscopedia
April 17, 2023 - Lacunae are multiple well-demarcated round/oval and reddish structures arranged in clusters, separated by a white rim called septae. Histologically, they correspond to dilated, thin-walled vessels in the papillary dermis.
Wikipedia
en.wikipedia.org › wiki › Lacuna_(manuscripts)
Lacuna (manuscripts) - Wikipedia
June 10, 2025 - A lacuna (pl. lacunae or lacunas) is a gap in a manuscript, inscription, text, painting, or musical work. A manuscript, text, or section suffering from gaps is said to be "lacunose" or "lacunulose".
Taber's Medical Dictionary
tabers.com › tabersonline › view › Tabers-Dictionary › 736396 › all › lacuna
lacuna | Taber's Medical Dictionary
To hear audio pronunciation of this topic, purchase a subscription or log in. pl. lacunae [L., lacuna, pit, gap, deficiency] 1. An empty space, gap, or hollow area. 2. The space occupied by cells of calcified tissues, e.g., cementocytes, ...
Merriam-Webster
merriam-webster.com › thesaurus › lacunae
LACUNAE Synonyms: 36 Similar and Opposite Words | Merriam-Webster Thesaurus
2 weeks ago - Synonyms for LACUNAE: shortages, lacks, deficiencies, inadequacies, deficits, insufficiencies, absences, scarcities; Antonyms of LACUNAE: adequacies, amplitudes, sufficiencies, abundances, wealths, excesses, plenties, surpluses
Wiktionary
en.wiktionary.org › wiki › lacuna
lacuna - Wiktionary, the free dictionary
Learned borrowing from Latin lacūna (“a ditch, pit; a hollow, cavity; a gap, defect”).
Vocabulary.com
vocabulary.com › dictionary › lacuna
Lacuna - Definition, Meaning & Synonyms | Vocabulary.com
A lacuna is a gap or missing part. If you complain that there's a major lacuna in the bake sale, the lack of brownies is probably to blame.
Fiveable
fiveable.me › all key terms › general biology i › lacunae
Lacunae Definition - General Biology I Key Term | Fiveable
Lacunae are small cavities within the bone matrix that house osteocytes. These spaces play a critical role in maintaining bone health and structure.
Cambridge Dictionary
dictionary.cambridge.org › us › dictionary › english › lacuna
LACUNA | definition in the Cambridge English Dictionary
6 days ago - Small dark areas within the bone, around the vascular canals are lacunae, or spaces where the adult bone cells would have lived in the dinosaur.
Encyclopedia Britannica
britannica.com › science › Howship-lacunae
Howship lacunae | anatomy | Britannica
1 month ago - …on the bone’s surface, called Howship lacunae; the lacunae are thought to be caused by erosion of the bone by the osteoclasts’ enzymes. Osteoclasts are formed by the fusion of many cells derived from circulating monocytes in the blood. These in turn are derived from the bone marrow.
Fiveable
fiveable.me › all key terms › anatomy and physiology i › lacunae
Lacunae Definition - Anatomy and Physiology I Key Term |...
Lacunae are small cavities in bone or cartilage tissue that house cells, such as osteocytes in bones and chondrocytes in cartilage. These spaces are crucial...
TheFreeDictionary.com
thefreedictionary.com › lacunae
Lacunae - definition of lacunae by The Free Dictionary
Define lacunae. lacunae synonyms, lacunae pronunciation, lacunae translation, English dictionary definition of lacunae. n. pl. la·cu·nae or la·cu·nas 1. An empty space or a missing part; a gap: "self-centered in opinion, with curious lacunae ...
Taylor & Francis
taylorandfrancis.com › knowledge › Medicine_and_healthcare › Anatomy › Lacunae
Lacunae - Knowledge and References | Taylor & Francis
The archetypal dermoscopic structures in hemangiomas are lacunae or lagoons, which are round to oval or angulated, well-defined areas that may vary in size and color. Lacunae may be tightly clustered or scattered throughout the lesion and are often separated by fibrous septae.
Quora
quora.com › What-is-lacunae-in-biology
What is lacunae in biology? - Quora
Lacunae (singular: lacuna) are small spaces or cavities within biological tissues that house cells, fluid, or air depending on the tissue type.
Etymonline
etymonline.com › word › lacunae
Lacunae - Etymology, Origin & Meaning
The Latin plural is lacunae.