datum

名词 n. 动词 v.
中文释义

英文释义

名词 n.
  1. Something known or assumed as fact, and is made the basis of reasoning or inference which an intellectual system of any sort (such as knowledge or theoretical framework) is constructed.
    — a datum of experience
  2. Singular of data: A single recorded phenomenon, especially obtained by scientific work. form-of,singular
    — Holonym: data set
  3. A point, line, plane, or surface with reference to which positions (such as elevations) are measured or indicated. (Examples include a permanent benchmark in leveling or mean sea level in a topographical survey).
    — A geodetic datum is sometimes also called a benchmark.
  4. A floating reference point, or SLDMB, used to evaluate surface currents in a body of water, and often employed by coastal search and rescue.
动词 v.
  1. To provide missing data points by using a mathematical model to extrapolate values that are outside the range of a measuring device.
    — 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.

词形变化

data error-unknown-tag,plural datums error-unknown-tag,plural datums present,singular,third-person datuming participle,present datumed participle,past datumed past

词汇关系

衍生词
chart datum datum circle datum line datum plane datum point datum surface metadatum sense datum

词源

词源 1
Etymology tree
Proto-Indo-European *deh₃-redup.
Proto-Indo-European *-ti
Proto-Indo-European *dédeh₃ti
Proto-Italic *didō
Latin dō
Latin datusnom.
Latin datumlbor.
English datum
Learned borrowing from Latin datum, a nominalization of datus, perfect passive participle of dō, from Proto-Italic *didō, from Proto-Indo-European *dédeh₃ti, reduplication of *deh₃-, or from *-ti. Doublet of die.
词源 2
Etymology tree
Proto-Indo-European *deh₃-redup.
Proto-Indo-European *-ti
Proto-Indo-European *dédeh₃ti
Proto-Italic *didō
Latin dō
Latin datusnom.
Latin datumlbor.
English datum
Learned borrowing from Latin datum, a nominalization of datus, perfect passive participle of dō, from Proto-Italic *didō, from Proto-Indo-European *dédeh₃ti, reduplication of *deh₃-, or from *-ti. Doublet of die.
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