ephemeris time definition, ephemeris time meaning | English dictionary

Search also in: Web News Encyclopedia Images
Collins

ephemeris time

  

      n   time that is based on the orbit of the earth around the sun rather than the axial rotation of the earth, one ephemeris second being 1/31556925.9747 of the tropical year 1900. It was used from 1960 to 1983 as an astronomical timescale but has been replaced by terrestrial dynamical time and barycentric dynamic time  
   See       TDT       TDB  
English Collins Dictionary - English Definition & Thesaurus  
Collins
ephemeris  
      n   pl   , ephemerides  
1    a table giving the future positions of a planet, comet, or satellite  
2    an annual publication giving the positions of the sun, moon, and planets during the course of a year, information concerning eclipses, astronomical constants, etc.  
3    Obsolete   a diary or almanac  
     (C16: from Latin, from Greek: diary, journal; see ephemeral)  


ephemeris time  
      n   time that is based on the orbit of the earth around the sun rather than the axial rotation of the earth, one ephemeris second being 1/31556925.9747 of the tropical year 1900. It was used from 1960 to 1983 as an astronomical timescale but has been replaced by terrestrial dynamical time and barycentric dynamic time  
   See       TDT       TDB  

English Collins Dictionary - English Definition & Thesaurus  

Collaborative Dictionary     English Definition
n.
When men have quality time together, and do "guy" things.
[Slang] related to bro-mance
o.
Zone Time
[Tech.]; Astro. [initialism]. Warning: ZT is not Zulu Time (former US military name for UTC)
exp.
a difficult time
v.
have a ​difficult ​time
exp.
have a great time; enjoy oneself
n.
encounter mostly for sex done around lunch time
[Fam.] in French it's "cinq à sept" which is rather in the end of afternoon
v.
A culture of internet only jobs has coined the phrase Wirk. Wirk simply means Internet Work. Internet work is defined by job opportunities that did not exist before the rise of the internet and furthermore the work is likely to be carried out over the internet and payment received for work undertaken via the internet. Wirk describes both full time and part time internet work. Because of the nature of Wirk and the ability for anyone that has internet connection to earn money from Wirk, it is currently more likely to be a part time occupation than full time. Paid Online Questionnaires, Content Writing, Search Marketing are all examples of Wirk.
This is a term rising in popularity
n.
free time spent taking care also of work-related tasks
formed based on "work" and "leisure"
exp.
spend time and energy doing something that is pointless
expression arisen in the 15th century when Newcastle (England) was a major exporter of coal
exp.
let the time go by without doing something important, relax, waste time
E.g.: It was a quite evening: we sat around chatting and watching TV.
abbr. acron.
greatest of all time
[Slang] You won! You're the GOAT!
adj.
[arch.] near in space, time or relation, almost (followed by: upon)
"nigh upon" is even stronger in keeping with an antiquated, even biblical style. "The end of the world is nigh upon us"
n.
a sound (usually a song, jingle) that one hears mentally for a certain period of time
adj.
forced by a medical condition to spend most of the time home
n.
a teenager who spends most of his time in front of a screen (computer, smartphone, tablet, TV)
n.
someone who, most of the time, carries a device enabling him to capture his day-by-day experiences (such as a photo camera, mobile phone etc.)
exp.
sleep for a short period of time, have a light sleep
n.
a website that did not undergo any change for a long period of time
[Comp.];[Slang]
exp.
someone who spends very few time with his wife/ her husband because of the partner's preoccupation with physical exercise
n.
a type of work that goes on 24 hours from 24 hours because the teams performing it are located in various time zones.
E.g: Some claim that follow-the-sun is a business failure. It can be used also as a verb (Our team follows the sun ) or as an adjective (We offer follow-the-sun business support) .
n.
digitalizing information in order to keeping it available and exploitable in time
[Tech.] digitalizing = putting something in a format that can be easily read by a computer
exp.
expression used when referring to something that is unlikely to happen soon (not in the time interval that one can resist holding his breath)
E.g.: "Will the economy recover any soon?" - "Don't hold your breath."
n.
1. [Rel.] expression used to describe metaphorically a period of ignorance and spiritual crisis that precedes the communion with Divinity ; 2. in a larger meaning, it is used when refering to having a hard time, going through a phase of pessimism, sadness, failure etc.
exp.
if people live in each other's pocket, they spend a lot of time together
exp.
to do two things at the same time using the effort needed to do only one
To add entries to your own vocabulary, become a member of Reverso community or login if you are already a member. It's easy and only takes a few seconds:
Or sign up in the traditional way

Advertising
Advertising