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单词 equinoctial
释义

WordReference Random House Unabridged Dictionary of American English © 2024
e•qui•noc•tial  (ē′kwə nok′shəl, ek′wə-),USA pronunciation adj. 
  1. Astronomypertaining to an equinox or the equinoxes, or to the equality of day and night.
  2. Astronomypertaining to the celestial equator.
  3. Astronomyoccurring at or about the time of an equinox.
  4. Botany(of a flower) opening regularly at a certain hour.

n. 
  1. AstronomySee celestial equator. 
  2. MeteorologySee equinoctial storm. 
  • Latin aequinoctiālis pertaining to the equinox. See equinox, -al1
  • Middle English 1350–1400

Collins Concise English Dictionary © HarperCollins Publishers::
equinoctial /ˌiːkwɪˈnɒkʃəl/ adj
  1. relating to or occurring at either or both equinoxes
  2. of or relating to the celestial equator
 n
  1. a storm or gale at or near an equinox
  2. another name for celestial equator
Etymology: 14th Century: from Latin aequinoctiālis concerning the equinox
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更新时间：2025/7/25 3:53:28