English-Thai Dictionary
epicycle
N การ เคลื่อนที่ ของ ดาวเคราะห์ ตาม ทฤษฎี ระบบสุริยะ ของ เพล โต ที่ว่า วัตถุ ทรงกลม จะ เคลื่อนที่ ไป ตาม เส้นรอบวง ของ วัตถุ ทรงกลม ที่ ใหญ่ กว่า cycle orbit kan-kluean-ti-kong-dao-kro-tam-true-sa-de-ra-bob-su-ri-ya-kong-ple-to-ti-wa-wad-tu-song-klom-ja-kluean-ti-pai-tam-sen-rob-wong-kong-wad-tu-song-klom-ti-yai-kwa
epicycle
N วัตถุ ทรงกลม ที่ กลิ้ง ไป รอบๆ เส้นรอบวง ของ วัตถุ ทรงกลม ที่ ใหญ่ กว่า (ทาง เรขาค ณิต wad-tu-song-klom-ti-kling-pai-rob-rob-sen-rob-wong-kong-wad-tu-song-klom-ti-yai-kwa
Webster's 1828 Dictionary
EPICYCLE
n.[Gr. a circle. ] A little circle, whose center is in the circumference of a greater circle; or a small orb, which, being fixed in the deferent of a planet, is carried along with it, and yet by its own peculiar motion, carries the body of the planet fastened to it round its proper center.
Webster's 1913 Dictionary
EPICYCLE
Ep "i *cy `cle, n. Etym: [L. epicyclus, Gr. Cycle. ]
1. (Ptolemaic Astron.)
Defn: A circle, whose center moves round in the circumference of a greater circle; or a small circle, whose center, being fixed in the deferent of a planet, is carried along with the deferent, and yet, by its own peculiar motion, carries the body of the planet fastened to it round its proper center. The schoolmen were like astronomers which did feign eccentries, and epicycles, and such engines of orbs. Bacon.
2. (Mech. )
Defn: A circle which rolls on the circumference of another circle, either externally or internally.
New American Oxford Dictionary
epicycle
ep i cy cle |ˈepiˌsīkəl ˈɛpəsaɪkəl | ▶noun Geometry a small circle whose center moves around the circumference of a larger one. • historical a circle of this type used to describe planetary orbits in the Ptolemaic system. DERIVATIVES ep i cy clic |ˌepiˈsīklik, ˈepi- |adjective ORIGIN late Middle English: from Old French, or via late Latin from Greek epikuklos, from epi ‘upon ’ + kuklos ‘circle. ’
Oxford Dictionary
epicycle
epicycle |ˈɛpɪˌsʌɪk (ə )l | ▶noun Geometry a small circle whose centre moves round the circumference of a larger one. • historical an epicycle used to describe planetary orbits in the Ptolemaic system. DERIVATIVES epicyclic |-ˈsʌɪklɪk, -ˈsɪklɪk |adjective ORIGIN late Middle English: from Old French, or via late Latin from Greek epikuklos, from epi ‘upon ’ + kuklos ‘circle ’.
The Wordsmith Dictionary