datum
English edit
Etymology edit
Borrowed from Latin datum (“a given”). Doublet of die.
Pronunciation edit
- IPA(key): /ˈdeɪtəm/, /ˈdætəm/, /ˈdɑːtəm/ (see data for regional distribution)
Audio (US) (file) - Rhymes: -eɪtəm, -ætəm, -ɑːtəm
Noun edit
datum (plural (senses 1–3) data or (senses 1 and 4–5) datums)
- (dated) Singular of data; a single recorded observation.
- (philosophy) A fact known from direct observation.
- (philosophy) A premise from which conclusions are drawn.
- (cartography, surveying, engineering) A fixed reference point or set of reference points which precisely define a system of measurement or a coordinate system.
- 2000, Nuno Sergio Marques Antunes, “The Importance of the Tidal Datum in the Definition of Maritime Limits and Boundaries”, in Maritime Briefing, volume 2, number 7, International Boundaries Research Unit, University of Durham, page 5:
- In a strict sense, a tidal datum can be understood as the reference plane (or surface) to which the height of a predicted tide is referred. […] Sounding and chart datums are low water datums, that is, they refer to the level of the water surface at low tide. Nonetheless, there are also datums based on high water levels. […] These two different datums may be included in the broader category of vertical datums, which comprises any plane or surface used as a reference to measure vertical distances (such as depths, drying features, heights on shore, etc.).
- 2007, Roger F Tomlinson, Thinking about GIS: geographic information system planning for managers:
- Datums are another important map aspect related to projection. A datum provides a base reference for measuring locations on Earth's surface.
- 2012, Yong-Qi Chen, Yuk-Cheung Lee, chapter 2.3, in Geographical Data Acquisition:
- For horizontal measurements [on the Earth], we fix a mathematical body of Earth in space using a Cartesian coordinate system. After that, a separate coordinate system is created over the surface of this body to generate horizontal coordinates. A mathematical earth body fixed in space makes up the horizontal datum.
- (nautical) A floating reference point, or SLDMB, used to evaluate surface currents in a body of water. Often employed by coastal search and rescue.
Derived terms edit
Translations edit
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Verb edit
datum (third-person singular simple present datums, present participle datuming or datumming, simple past and past participle datumed or datummed)
- To provide missing data points by using a mathematical model to extrapolate values that are outside the range of a measuring device.
- 1982, Paul M. Tucker, Pitfalls Revisited - Issue 3, →ISBN, page 6:
- Removing the effects of any period of deformation by datuming or flattening selective reflection horizons should restore the structure prior to the datumed horizon, or the amount of deformation above the datumed horizon.
- 1998, Stuart Fagin, Model-based Depth Imaging, →ISBN, page 164:
- On the left the stacking velocity functions are datumed to sea level and show great disparity.
- 2014, Hua-Wei Zhou -, Practical Seismic Data Analysis, →ISBN, page 62:
- On the other hand, if we have a sufficiently accurate near-surface velocity model, we may apply wavefield datuming to convert the raw data into new data as if they were recorded along a datum below the near surface (Box 2.3).
Related terms edit
References edit
- AskOxford.com: Is 'data' singular or plural?
- “datum”, in Dictionary.com Unabridged, Dictionary.com, LLC, 1995–present. (The American Heritage Dictionary's usage note on 'data')
- John Quiggin: Data is not the plural of datum
- johnaugust.com: ‘Data’ is singular
- “datum”, in OneLook Dictionary Search.
Czech edit
Pronunciation edit
audio (file)
Noun edit
datum n
- date (point in time)
Declension edit
Related terms edit
Further reading edit
Dutch edit
Etymology edit
From Middle Dutch datum, from Latin datum (“given”, past participle) (from the practice of signing letters in Latin by noting the date on which they were dispatched). Compare English date.
Pronunciation edit
Noun edit
datum m (plural datums or data, diminutive datumpje n)
- date (point in time)
Usage notes edit
Datum is one of the few Dutch words ending on -um that does not have a neutral gender.
Derived terms edit
Descendants edit
Noun edit
datum n (plural data, diminutive datumpje n)
Indonesian edit
Etymology edit
From Dutch datum, from Middle Dutch datum, from Latin datum (“given”, past participle).
Pronunciation edit
Noun edit
datum (plural datum-datum, first-person possessive datumku, second-person possessive datummu, third-person possessive datumnya)
- date (day and month)
- Synonyms: hari bulan, penanggalan, tanggal, tarikh
- (cartography, engineering) A fixed reference point, or a coordinate system.
Noun edit
datum (plural data, first-person possessive datumku, second-person possessive datummu, third-person possessive datumnya)
- a single information
References edit
- “datum” in Kamus Besar Bahasa Indonesia, Jakarta: Language Development and Fostering Agency — Ministry of Education, Culture, Research, and Technology of the Republic Indonesia, 2016.
Latin edit
Etymology edit
Neuter past participle of dō.
Pronunciation edit
- (Classical) IPA(key): /ˈda.tum/, [ˈd̪ät̪ʊ̃ˑ]
- (modern Italianate Ecclesiastical) IPA(key): /ˈda.tum/, [ˈd̪äːt̪um]
Noun edit
datum n (genitive datī); second declension
Declension edit
Second-declension noun (neuter).
Case | Singular | Plural |
---|---|---|
Nominative | datum | data |
Genitive | datī | datōrum |
Dative | datō | datīs |
Accusative | datum | data |
Ablative | datō | datīs |
Vocative | datum | data |
Related terms edit
Descendants edit
Verb edit
datum
- accusative supine of dō
Participle edit
datum
- inflection of datus:
References edit
- datum in Charles du Fresne du Cange’s Glossarium Mediæ et Infimæ Latinitatis (augmented edition with additions by D. P. Carpenterius, Adelungius and others, edited by Léopold Favre, 1883–1887)
- “datum”, in The Perseus Project (1999) Perseus Encyclopedia[1]
- “datum”, in Harry Thurston Peck, editor (1898) Harper's Dictionary of Classical Antiquities, New York: Harper & Brothers
- “datum”, in William Smith, editor (1854, 1857) A Dictionary of Greek and Roman Geography, volume 1 & 2, London: Walton and Maberly
Latvian edit
Noun edit
datum
Norwegian Nynorsk edit
Etymology edit
From Latin datum. Doublet of dato.
Pronunciation edit
Noun edit
datum n (definite singular datumet, indefinite plural datum, definite plural datuma)
Related terms edit
References edit
- “datum” in The Nynorsk Dictionary.
Serbo-Croatian edit
Etymology edit
Pronunciation edit
Noun edit
dátum m (Cyrillic spelling да́тум)
- date (as in day, month, and year)
Declension edit
References edit
- “datum” in Hrvatski jezični portal
Slovene edit
Pronunciation edit
Noun edit
dātum m inan
- date (point of time)
Inflection edit
Masculine inan., hard o-stem | |||
---|---|---|---|
nom. sing. | dátum | ||
gen. sing. | dátuma | ||
singular | dual | plural | |
nominative (imenovȃlnik) |
dátum | dátuma | dátumi |
genitive (rodȋlnik) |
dátuma | dátumov | dátumov |
dative (dajȃlnik) |
dátumu | dátumoma | dátumom |
accusative (tožȋlnik) |
dátum | dátuma | dátume |
locative (mẹ̑stnik) |
dátumu | dátumih | dátumih |
instrumental (orọ̑dnik) |
dátumom | dátumoma | dátumi |
Swedish edit
Etymology edit
From Latin datum (“given”, past participle).
Pronunciation edit
audio (file)
Noun edit
datum n
- date; (day, month and year)
Usage notes edit
- The now very uncommon (or obsolete) declension datot-data was used in 1958.
Declension edit
Declension of datum | ||||
---|---|---|---|---|
Singular | Plural | |||
Indefinite | Definite | Indefinite | Definite | |
Nominative | datum | datumet | datum | datumen |
Genitive | datums | datumets | datums | datumens |
Declension of datum | ||||
---|---|---|---|---|
Singular | Plural | |||
Indefinite | Definite | Indefinite | Definite | |
Nominative | datum | datot | data | data |
Genitive | datums | datots | datas | datas |