prime vertical

noun

astronomy the great circle passing through the observer's zenith and meeting the horizon due east and west

Nearby words

  1. prime of life,
  2. prime rate,
  3. prime ribs,
  4. prime the pump,
  5. prime time,
  6. primely,
  7. primer,
  8. primero,
  9. primers,
  10. primeval

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012