a hypothetical planet that coincides with a real planet when the real planet is at perihelion and that moves in an orbit at a constant velocity equal to the mean velocity of the real planet.
What Does “Wiki” Mean?Wikipedia is another wiki word that has become ubiquitous. But where does the wiki in WikiLeaks and Wikipedia come from?
What Does “Sophomore” Mean?Of the four tiers of high school, sophomore is the year that stands out as strange. Freshman, junior, and senior are relatively clear monikers for their associated levels, and it’s funny that in school, the place where you are most expected to know the how and why of everything, second-year students are called by a term whose roots are abstruse. Then there is the problem …
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019