# An Etymological Dictionary of Astronomy and AstrophysicsEnglish-French-Persian

## فرهنگ ریشه شناختی اخترشناسی-اخترفیزیک

### M. Heydari-Malayeri    -    Paris Observatory

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Number of Results: 5 Search : cardinal
 cardinal   اگرا   agrâFr.: cardinal   1) Fundamentally → important; → principal. 2) → cardinal number.M.E., from L.L. cardinalis "principal, pivotal," lit. "serving as a hinge," from cardo, cardin- "door hinge."Agrâ, from Av. aγra-, aγrya- "the highest, the first, foremost" cf. Skt. agra- "foremost, first, prominent," PIE *agro- "top, first, beginning." cardinal direction   سوی ِ اگرا   su-ye agrâFr.: point cardinal   Any of the four principal directions or points of the compass, → north, → east, → south, and → west. See also: → cardinal point.→ cardinal; → direction. cardinal number   عدد ِ اگرا   adad-e agrâFr.: nombre cardinal   An ordinary number such as 0, 1, 2, or 3, as opposed to an → ordinal number such as 1st, 2nd, or 3rd. Cardinal numbers can be → zero or → positive and are used for counting the things that are assumed to be not divisible.→ cardinal; → number. cardinal point   نقطه‌ی ِ اگرا   noqte-ye agrâFr.: point cardinal   One of the four points where the → meridian and the → prime vertical intersect the → horizon. See also: → cardinal direction.→ cardinal; → point. cardinality   اگرایی   agrâyiFr.: cardinalité   Math.: The → cardinal number indicating the → number of → elements in a → set. For example, the set A = {a, b, c, d} contains 4 elements, and therefore it has a cardinality of 4 (denoted |A| = 4).→ cardinal; → -ity.