英语词汇“perihelion”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

per•i•he•li•on n. [countable], pl. -he•li•a

Astronomythe point in the orbit of a planet or comet at which it is nearest to the sun.Compare aphelion.

See -helio-.

per•i•he•li•on n., pl. -he•li•a [Astron.]

Astronomythe point in the orbit of a planet or comet at which it is nearest to the sun. Cf. aphelion. See diag. under aphelion.

Greek peri- peri- + hé̄li(os) sun + -on neuter noun, nominal suffix, on the model of perigee; earlier in the Neo-Latin form perihelium
1660–70

per′i•he′li•al, per′i•he′li•an, adj.

perihelion /ˌpɛrɪˈhiːlɪən/ n ( pl -lia / -lɪə/)

the point in its orbit when a planet or comet is nearest the sun

Etymology: 17th Century: from New Latin perihēlium, from peri- + Greek hēlios sun

单词	perihelion
释义	WordReference Random House Learner's Dictionary of American English © 2024 per•i•he•li•on /ˌpɛrəˈhiliən, -ˈhilyən/USA pronunciation n. [countable], pl. -he•li•a /-ˈhiliə, -ˈhilyə/.USA pronunciation Astronomythe point in the orbit of a planet or comet at which it is nearest to the sun.Compare aphelion. See -helio-. WordReference Random House Unabridged Dictionary of American English © 2024 per•i•he•li•on (per′ə hē′lē ən, -hēl′yən),USA pronunciation n., pl. -he•li•a (-hē′lē ə, -hēl′yə).USA pronunciation [Astron.] Astronomythe point in the orbit of a planet or comet at which it is nearest to the sun. Cf. aphelion. See diag. under aphelion. Greek peri- peri- + hé̄li(os) sun + -on neuter noun, nominal suffix, on the model of perigee; earlier in the Neo-Latin form perihelium 1660–70 per′i•he′li•al, per′i•he′li•an, adj. Collins Concise English Dictionary © HarperCollins Publishers:: perihelion /ˌpɛrɪˈhiːlɪən/ n ( pl -lia / -lɪə/) the point in its orbit when a planet or comet is nearest the sun Etymology: 17th Century: from New Latin perihēlium, from peri- + Greek hēlios sun
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