英文字典中文字典


英文字典中文字典51ZiDian.com



中文字典辞典   英文字典 a   b   c   d   e   f   g   h   i   j   k   l   m   n   o   p   q   r   s   t   u   v   w   x   y   z       







请输入英文单字,中文词皆可:

sidereal    
a. 星的,恒星的,以星球的运行为基准的

星的,恒星的,以星球的运行为基准的

sidereal
adj 1: of or relating to the stars or constellations; "sidereal
bodies"; "the sidereal system"
2: (of divisions of time) determined by daily motion of the
stars; "sidereal time" [ant: {civil}]

Sidereal \Si*de"re*al\, a. [L. sidereus, from sidus, sideris, a
constellation, a star. Cf. {Sideral}, {Consider}, {Desire}.]
1. Relating to the stars; starry; astral; as, sidereal
astronomy.
[1913 Webster]

2. (Astron.) Measuring by the apparent motion of the stars;
designated, marked out, or accompanied, by a return to the
same position in respect to the stars; as, the sidereal
revolution of a planet; a sidereal day.
[1913 Webster]

{Sidereal clock}, {day}, {month}, {year}. See under {Clock},
{Day}, etc.

{Sideral time}, time as reckoned by sideral days, or, taking
the sidereal day as the unit, the time elapsed since a
transit of the vernal equinox, reckoned in parts of a
sidereal day. This is, strictly, apparent sidereal time,
mean sidereal time being reckoned from the transit, not of
the true, but of the mean, equinoctial point.
[1913 Webster]


Month \Month\ (m[u^]nth), n. [OE. month, moneth, AS.
m[=o]n[eth], m[=o]na[eth]; akin to m[=o]na moon, and to D.
maand month, G. monat, OHG. m[=a]n[=o]d, Icel. m[=a]nu[eth]r,
m[=a]na[eth]r, Goth. m[=e]n[=o][thorn]s. [root]272. See
{Moon}.]
One of the twelve portions into which the year is divided;
the twelfth part of a year, corresponding nearly to the
length of a synodic revolution of the moon, -- whence the
name. In popular use, a period of four weeks is often called
a month.
[1913 Webster]

Note: In the common law, a month is a lunar month, or
twenty-eight days, unless otherwise expressed.
--Blackstone. In the United States the rule of the
common law is generally changed, and a month is
declared to mean a calendar month. --Cooley's
Blackstone.
[1913 Webster]

{A month mind}.
(a) A strong or abnormal desire. [Obs.] --Shak.
(b) A celebration made in remembrance of a deceased person a
month after death. --Strype.

{Calendar months}, the months as adjusted in the common or
Gregorian calendar; April, June, September, and November,
containing 30 days, and the rest 31, except February,
which, in common years, has 28, and in leap years 29.

{Lunar month}, the period of one revolution of the moon,
particularly a synodical revolution; but several kinds are
distinguished, as the {synodical month}, or period from
one new moon to the next, in mean length 29 d. 12 h. 44 m.
2.87 s.; the {nodical month}, or time of revolution from
one node to the same again, in length 27 d. 5 h. 5 m. 36
s.; the {sidereal}, or time of revolution from a star to
the same again, equal to 27 d. 7 h. 43 m. 11.5 s.; the
{anomalistic}, or time of revolution from perigee to
perigee again, in length 27 d. 13 h. 18 m. 37.4 s.; and
the {tropical}, or time of passing from any point of the
ecliptic to the same again, equal to 27 d. 7 h. 43 m. 4.7
s.

{Solar month}, the time in which the sun passes through one
sign of the zodiac, in mean length 30 d. 10 h. 29 m. 4.1
s.
[1913 Webster]


请选择你想看的字典辞典:
单词字典翻译
sidereal查看 sidereal 在百度字典中的解释百度英翻中〔查看〕
sidereal查看 sidereal 在Google字典中的解释Google英翻中〔查看〕
sidereal查看 sidereal 在Yahoo字典中的解释Yahoo英翻中〔查看〕





安装中文字典英文字典查询工具!


中文字典英文字典工具:
选择颜色:
输入中英文单字

































































英文字典中文字典相关资料:


  • Messenger
    Instantly reach the people in your life—for free Messenger is just like texting, but you don't have to pay for every message (it works with your data plan)
  • Messenger
    Messenger helps you connect with your Facebook friends and family, build your community, and deepen your interests
  • Messenger - Facebook
    Messenger from Facebook helps you stay close with those who matter most, and on any device
  • Messenger from Meta | Meta
    Messenger helps you connect with the people you care about most It is your shared space to customize and express what’s on your mind and share content and experiences in the moment together on any device, anytime, anywhere
  • Messenger - Apps on Google Play
    Messenger is a free messaging app that helps you connect with anyone, anywhere Stay in touch with your friends and family, explore your interests with people like you, build your community, and
  • ‎Messenger App - App Store
    Group video calls, voice calls, text messaging and more! Messenger is a free messaging app that helps you connect with anyone, anywhere
  • Download Messenger (free) for Android, APK, iOS and Web App | Gizmodo
    Messenger is Facebook’s messaging app It provides users with a means of communication They can also create groups, make video calls, and much more
  • Facebook
    Forgot account? Do you want to join Facebook?
  • Messenger APK for Android Download - APKPure. com
    Messenger connects you with Facebook friends and communities across mobile, desktop, and the web You can stay close to family, coordinate groups, and follow creators in one place Conversations on Messenger sync across devices, and you can move from text to voice or video whenever needed
  • Download or update your Messenger app
    Download or update to the latest version of the Messenger mobile app to get the newest features and help fix problems





中文字典-英文字典  2005-2009