noun. A building, place, or institution designed and equipped for making observations of astronomical, meteorological, or other natural phenomena.

noun. A structure overlooking an extensive view.

noun. A place or building set apart for, and fitted with instruments for making, observations of natural phenomena: as, an astronomical or a meteorological observatory.

noun. A place of observation at such an altitude as to afford an extensive view, such as a lookout-station, a signaling-station, or a belvedere.

noun. A place or building for making observations on the heavenly bodies.

noun. A building fitted with instruments for making systematic observations of any particular class or series of natural phenomena.

noun. A place, as an elevated chamber, from which a view may be observed or commanded.

noun. A lookout on a flank of a battery whence an officer can note the range and effect of the fire; usually referred to as an observation post.

noun. A place where stars, planets and other celestial bodies are observed, usually through a telescope.

noun. a building designed and equipped to observe astronomical phenomena

noun. a structure commanding a wide view of its surroundings

"The Abbé and I excused ourselves to Frances and Bettina, and went with the Doctor to the room which he called his observatory, where we came to the point very quickly: --"

magnetic observatory  national observatory  physical observatory  

building  edifice  

conservatory  fortification  foundry  institute  laboratory  

Cassegrainian telescope  Newtonian telescope  OAO  OSO  Texas tower  

observation post