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elongation

noun

  1. in astronomy, angular separation between the Sun and a planet, with the Earth as a reference point
  2. property of a three-dimensional object having one dimension significantly greater than the other two
L295554 on Wikidata ↗

Wiktionary

noun

Etymology: Etymology tree Late Latin elongatus Proto-Indo-European *-tis Proto-Indo-European *-Hō Proto-Indo-European *-tiHō Proto-Italic *-tiō Late Latin -tio Late Latin elongatio, elongationembor. English elongation Borrowed from Late Latin elongatio, elongationem.

  1. The act of lengthening.
  2. The state of being lengthened.
  3. That which lengthens out; a continuation.
  4. The ratio of the extension of a material to the length of the material prior to stretching.
  5. A removal to a distance; a withdrawal; a being at a distance; a distance.
  6. The angular distance of a planet from the sun.

    the elongation of Venus