different between discontinuity vs lacuna

English

Etymology

From Late Latin discontinuit?s, from discontinuus.

Pronunciation

• (Received Pronunciation) IPA^(key): /?d?sk?nt??nju??ti/
• (General American) IPA^(key): /?d?sk?nt??nu??ti/

Noun

discontinuity (plural discontinuities)

1. A lack of continuity, regularity or sequence; a break or gap. [from 16th c.]
   • 2012, George Dyson, Turing's Cathedral, Penguin 2013, p. 57:

     Shock waves are sudden discontinuities propagated in compressible media – usually air.

2. (mathematics) A point in the range of a function at which it is undefined or discontinuous. [from 19th c.]
3. (geology) a subterranean interface at which seismic velocities change

Derived terms

• Gutenberg discontinuity
• Mohorovi?i? discontinuity
• discontinuous

Translations

English

Etymology

Borrowed from Latin lac?na (“ditch, gap”), diminutive form of lacus (“lake”). Doublet of lagoon.

Pronunciation

• (UK) IPA^(key): /l??kju?.n?/
• (US) IPA^(key): /l??ku?.n?/, /l??kju?.n?/
• ,

Noun

lacuna (plural lacunae or lacunæ or lacunas)

1. A small opening; a small pit or depression.
2. A small blank space; a gap or vacancy; a hiatus.
3. An absent part, especially in a book or other piece of writing, often referring to an ancient manuscript or similar.

4. Any gap, break, hole, or lack in a set of things; something missing.
5. (microscopy) A space visible between cells, allowing free passage of light.
6. (translation studies) A language gap, which occurs when there is no direct translation in the target language for a lexical term found in the source language.

Synonyms

• hiatus
• gap
• (translation studies): anisomorphism

Derived terms

• lacunal
• lacunar
• lacunary
• lacunose

Translations

Anagrams

• canula

Italian

Etymology

Borrowed from Latin lac?na. Compare the inherited doublet laguna.

Pronunciation

• IPA^(key): /la?ku.na/
• Rhymes: -una

Noun

lacuna f (plural lacune)

1. gap
2. blank (space)
3. lapse (of memory)

Derived terms

• cunetta

Further reading

• lacuna in Treccani.it – Vocabolario Treccani on line, Istituto dell'Enciclopedia Italiana

Anagrams

• alcuna
• lucana

Latin

Etymology

From lacus (“lake, basin”).

This etymology is incomplete. You can help Wiktionary by elaborating on the origins of this term.

Pronunciation

• (Classical) IPA^(key): /la?ku?.na/, [??ä?ku?nä]
• (Ecclesiastical) IPA^(key): /la?ku.na/, [l??ku?n?]

Noun

lac?na f (genitive lac?nae); first declension

1. a hole, pit
2. an opening, cavity, hollow, cleft
3. a gap, void, defect

Declension

First-declension noun.

Derived terms

• lac?nar
• lac?n?rius
• lac?n?
• lac?n?sus

Descendants

References

• lacuna in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
• lacuna in Charlton T. Lewis (1891) An Elementary Latin Dictionary, New York: Harper & Brothers
• lacuna in Charles du Fresne du Cange’s Glossarium Mediæ et Infimæ Latinitatis (augmented edition, 1883–1887)
• lacuna in Gaffiot, Félix (1934) Dictionnaire illustré Latin-Français, Hachette
• lacuna in Harry Thurston Peck, editor (1898) Harper's Dictionary of Classical Antiquities, New York: Harper & Brothers
• lacuna in Ramminger, Johann (accessed 16 July 2016) Neulateinische Wortliste: Ein Wörterbuch des Lateinischen von Petrarca bis 1700?^[2], pre-publication website, 2005-2016

Portuguese

Etymology

Borrowed from Latin lac?na. Compare the inherited lagoa and laguna.

Noun

lacuna f (plural lacunas)

1. hiatus (gap in a series)

   Synonym: hiato

2. blank (space to be filled in)

Related terms

• lagoa

Romanian

Pronunciation

• IPA^(key): [la?kuna]

Noun

lacuna f

1. definite nominative/accusative singular of lacun?