An Etymological Dictionary of Astronomy and Astrophysics
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فرهنگ ریشه شناختی اخترشناسی-اخترفیزیک

M. Heydari-Malayeri    -    Paris Observatory

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Number of Results: 4 Search : occur
bound occurrence
  رخداد ِ بندیده   
roxdâd-e bandidé

Fr.: occurrence liée   

Any → occurrence of a → variable  x in an x-bound part of a → wff.

bound; → occurrence.

free occurrence
  رخداد ِ آزاد   
roxdâd-e âzâd

Fr.: occurrence libre   

An → occurrence of a → variable in a → wff, → iff it is not a → bound occurrence.

bound; → occurrence.

occur
  رخدادن   
roxdâdan (#)

Fr.: avoir lieu   

1) To happen; take place; come to pass.
2) To be found or be present; exist.

M.Fr. occurrer "to happen unexpectedly" or directly from L. occurrere "run to meet, run against, present itself," from ob "against, toward" + currere "to run," → current.

Roxdâdan, literally "to appear," from rox "appearance; aspect; face," variant ruy "face, surface" + dâdan "to give," → event.

occurrence
  رخداد   
roxdâd (#)

Fr.: événement   

1) The action, fact, or instance of occurring.
2) Something that happens; event; incident (Dictionary.com). 3) Logic: → bound occurrence; → free occurrence.

Verbal noun of → occur.